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Page last updated
Thu 3 September 2025

The Freshwater Mussels (Unionoida) of the World (and other less consequential bivalves)

FM(U)otW(aolcb) is the web version of the MUSSEL Project Database. Follow the links to browse the data or use the custom Google search field. Either way, you win!

Search the database pages:

Bivalvia | Unionida | Unionoidea | Unionidae | Unioninae | Anodontini | Alasmidontina

genus Pyganodon Crosse & Fischer, 1894: cladomics
     6 Recent valid species (6 total species)

Cladomics Summary

number of species = 6 (6 total)
analyzed in 188 cladograms in 113 publications
maximum number of terminals in an analysis = 5 (mean = 1.34, median = 1)

Basic Monophyly

number of cladograms that test basic monophyly (i.e., more than 1 included species) = 34
maximum number of included terminals = 5, (mean = 2.88 median = 2)
proportion of cladograms that support basic monophyly = 0.79


Pairwise Cladogram Clustering

The graphs below depict in two dimensions all pair-wise ingroup distances within the cladome. See the Cladmoics FARQ for more information.


PCoA Ordination


NJ Tree


Cyr et al., 2007 [Publ 2745], fig. 2C

** Top Monophyly Cladogram **

iTtTbiriSoTroTroSiD
44381000
        +-- Pyganodon_grandis **     
  +-----+                         
  |     +-- Pyganodon__1 **          
  |                               
--+  +----- Pyganodon__3 **          
  |  |                            
  |  |  +-- Pyganodon_cataracta__1 **
  +--+  |                         
     |  +-- Pyganodon_fragilis__1 ** 
     |  |                         
     +--+-- Pyganodon__2 **          
        |                         
        +-- Pyganodon_cataracta__2 **
        |                         
        +-- Pyganodon_fragilis__2 ** 

Perkins et al., 2025 [Publ 4447], fig. 2_mtDNA-ITS

** Top Sister-Group Cladogram **

iTtTbiriSoTroTroSiD
1101353214--
     +-------------- Utterbackiana    
  +--+                                
  |  |  +----------- Alasminota       
  |  +--+                             
  |     |  +-------- Pseudodontoideus 
  |     +--+                          
  |        |  +----- Lasmigona        
  |        +--+                       
  |           |  +-- Pterosyna        
  |           +--+                    
--+              +-- Arcidens         
  |                                   
  |              +-- Prolasmidonta    
  |           +--+                    
  |           |  +-- Platynaias       
  |     +-----+                       
  |     |     |  +-- Ligodonta        
  |     |     +--+                    
  |     |        +-- Alasmidonta      
  +-----+                             
        |        +-- Anodontoides     
        |  +-----+                    
        |  |     +-- Strophitus       
        +--+                          
           |  +----- Sulcularia       
           +--+                       
              |  +-- Pyganodon_grandis **
              +--+                    
                 +-- Utterbackia      

Zanatta et al., 2007 [Publ 2698], fig. 1A

iTtTbiriSoTroTroSiD
550511958
  +----- Utterbackia        
  |                         
  |  +-- Pyganodon_gibbosa **  
--+  |                      
  |  +-- Pyganodon_cataracta **
  |  |                      
  +--+-- Pyganodon_fragilis ** 
     |                      
     +-- Pyganodon_grandis **  
     |                      
     +-- Pyganodon_lacustris **

Hoeh, 1990 [Publ 2717], fig. 4

iTtTbiriSoTroTroSiD
553510859
  +----------- Utterbackia        
  |                               
--+  +-------- Pyganodon_fragilis ** 
  |  |                            
  +--+     +-- Pyganodon_cataracta **
     |  +--+                      
     |  |  +-- Pyganodon_gibbosa **  
     +--+                         
        |  +-- Pyganodon_lacustris **
        +--+                      
           +-- Pyganodon_grandis **  

Hoeh, 1990 [Publ 2717], fig. 2

iTtTbiriSoTroTroSiD
553510857
  +-------------- Utterbackia        
--+                                  
  |  +----------- Pyganodon_lacustris **
  +--+                               
     |  +-------- Pyganodon_grandis **  
     +--+                            
        |  +----- Pyganodon_fragilis ** 
        +--+                         
           |  +-- Pyganodon_cataracta **
           +--+                      
              +-- Pyganodon_gibbosa **  

Zanatta et al., 2007 [Publ 2698], fig. 1B

iTtTbiriSoTroTroSiD
553511957
  +-------------- Utterbackia        
--+                                  
  |  +----------- Pyganodon_lacustris **
  +--+                               
     |  +-------- Pyganodon_grandis **  
     +--+                            
        |  +----- Pyganodon_fragilis ** 
        +--+                         
           |  +-- Pyganodon_gibbosa **  
           +--+                      
              +-- Pyganodon_cataracta **

Hoeh, 1990 [Publ 2717], fig. 3

iTtTbiriSoTroTroSiD
51525108518
  +----- Pyganodon_fragilis **         
  |                                 
  +----- Utterbackia_imbecillis     
  |                                 
  +----- Utterbackia_peggyae        
  |                                 
  +----- Anodonta                   
  |                                 
  +----- Brachyanodon               
  |                                 
  +----- Utterbackiana_couperiana__1
  |                                 
--+----- Utterbackiana_couperiana__2
  |                                 
  +----- Utterbackiana_suborbiculata
  |                                 
  |  +-- Lasmigona                  
  +--+                              
  |  +-- Utterbackiana_implicata    
  |                                 
  |  +-- Pterosyna                  
  |  |                              
  |  +-- Platynaias                 
  |  |                              
  |  +-- Pyganodon_cataracta **        
  +--+                              
     +-- Pyganodon_gibbosa **          
     |                              
     +-- Pyganodon_grandis **          
     |                              
     +-- Pyganodon_lacustris **        

Cyr et al., 2007 [Publ 2745], fig. 2A

iTtTbiriSoTroTroSiD
44251005
  +-------- Pyganodon_grandis **  
  |                            
--+-------- Pyganodon__2 **       
  |                            
  |  +----- Pyganodon__1 **       
  +--+                         
     |  +-- Pyganodon_cataracta **
     +--+                      
        +-- Pyganodon_fragilis ** 

Cyr et al., 2007 [Publ 2745], fig. 2B

iTtTbiriSoTroTroSiD
44351005
        +-- Pyganodon_grandis **  
  +-----+                      
  |     +-- Pyganodon__1 **       
--+                            
  |  +----- Pyganodon__2 **       
  +--+                         
     |  +-- Pyganodon_cataracta **
     +--+                      
        +-- Pyganodon_fragilis ** 

Cyr et al., 2007 [Publ 2745], fig. 2D

iTtTbiriSoTroTroSiD
44250005
  +-------- Pyganodon_grandis **  
  |                            
--+-------- Pyganodon__2 **       
  |                            
  |  +----- Pyganodon__1 **       
  +--+                         
     |  +-- Pyganodon_cataracta **
     +--+                      
        +-- Pyganodon_fragilis ** 

Inoue et al., 2014 [Publ 3635], fig. 3B

iTtTbiriSoTroTroSiD
47244328
  +----- Pyganodon_grandis **  
  |                         
  +----- Pyganodon_cataracta **
  |                         
--+----- Pyganodon_fragilis ** 
  |                         
  +----- Pyganodon **          
  |                         
  |  +-- Platynaias         
  +--+                      
     +-- Arcidens           

Hoeh et al., 1995 [Publ 3391], fig. 2

iTtTbiriSoTroTroSiD
44143316
  +-------- Utterbackia        
  |                            
--+  +----- Pyganodon_lacustris **
  |  |                         
  +--+----- Pyganodon_grandis **  
     |                         
     |  +-- Pyganodon_cataracta **
     +--+                      
        +-- Pyganodon_fragilis ** 

Campbell & Lydeard, 2026 [Publ 4810], fig. 6-14

iTtTbiriSoTroTroSiD
343462833138
     +-------------- Utterbackia           
  +--+                                     
  |  |  +----------- Pyganodon_grandis **     
  |  +--+                                  
  |     |  +-------- Pyganodon_lacustris **   
  |     +--+                               
  |        |  +----- Pyganodon_cataracta__2 **
--+        +--+                            
  |           |  +-- Pyganodon_cataracta__1 **
  |           +--+                         
  |              +-- Potamilus             
  |                                        
  |  +-------------- Utterbackiana         
  |  |                                     
  +--+  +----------- Simpsonaias           
     |  |                                  
     |  |        +-- Alasminota            
     +--+  +-----+                         
        |  |     +-- Alasmidonta           
        |  |                               
        +--+     +-- Prolasmidonta         
           |  +--+                         
           |  |  +-- Platynaias            
           +--+                            
              |  +-- Anodontoides          
              +--+                         
                 +-- Strophitus            

Krebs et al., 2019 [Publ 4092], fig. 4

iTtTbiriSoTroTroSiD
33130005
  +----- Pyganodon_grandis **  
--+                         
  |  +-- Pyganodon_fragilis ** 
  +--+                      
     +-- Pyganodon_cataracta **

Stewart et al., 2021 [Publ 4451], fig. 1

iTtTbiriSoTroTroSiD
331313757
              +-- Alasmidonta        
  +-----------+                      
  |           +-- Pterosyna          
  |                                  
--+           +-- Strophitus         
  |  +--------+                      
  |  |        +-- Platynaias         
  +--+                               
     |  +-------- Utterbackia        
     +--+                            
        |  +----- Pyganodon_grandis **  
        +--+                         
           |  +-- Pyganodon_cataracta **
           +--+                      
              +-- Pyganodon_lacustris **

Inoue et al., 2018 [Publ 3858], fig. 1_3a-c

iTtTbiriSoTroTroSiD
2200210314923
  +-- Alasmidonta_marginata      
  |                              
  +-- Prolasmidonta              
  |                              
  +-- Alasmidonta_undulata       
  |                              
  +-- Beringiana                 
  |                              
  +-- Brachyanodon_kennerlyi     
  |                              
  +-- Brachyanodon_nuttalliana   
  |                              
  +-- Brachyanodon_oregonensis   
  |                              
  +-- Arcidens_confragosus       
  |                              
  +-- Arcidens_wheeleri          
  |                              
  +-- Pterosyna                  
  |                              
--+-- Platynaias_compressa       
  |                              
  +-- Lasmigona                  
  |                              
  +-- Platynaias_decorata        
  |                              
  +-- Platynaias_subviridis      
  |                              
  +-- Pyganodon_grandis **          
  |                              
  +-- Pyganodon_lacustris **        
  |                              
  +-- Pseudodontoideus           
  |                              
  +-- Strophitus                 
  |                              
  +-- Utterbackia_imbecillis     
  |                              
  +-- Utterbackia_peninsularis__1
  |                              
  +-- Utterbackia_peninsularis__2

Rosenberg et al., 1994 [Publ 2719], fig. 3

iTtTbiriSoTroTroSiD
21002171111
  +-- Pyganodon_cataracta **
  |                      
  +-- Pyganodon_grandis **  
  |                      
  +-- Utterbackia        
  |                      
  +-- Lampsilis_teres    
  |                      
  +-- Lampsilis_straminea
--+                      
  +-- Megalonaias        
  |                      
  +-- Obliquaria         
  |                      
  +-- Theliderma         
  |                      
  +-- Quadrula           
  |                      
  +-- Uniomerus          

Walker et al., 2006 [Publ 2666], fig. 6

iTtTbiriSoTroTroSiD
22023400--
  +-- Pyganodon_fragilis **
--+                     
  +-- Pyganodon_grandis ** 

Whelan et al., 2023 [Publ 4287], fig. 2

iTtTbiriSoTroTroSiD
2203393113--
        +-------- Utterbackia         
  +-----+                             
  |     |  +----- Pyganodon_grandis__2 **
  |     +--+                          
  |        |  +-- Pyganodon_grandis__1 **
  |        +--+                       
  |           +-- Pyganodon_lacustris ** 
  |                                   
--+     +-------- Utterbackiana       
  |     |                             
  |  +--+     +-- Lasmigona           
  |  |  |  +--+                       
  |  |  |  |  +-- Pseudodontoideus    
  |  |  +--+                          
  |  |     |  +-- Pterosyna           
  |  |     +--+                       
  +--+        +-- Arcidens            
     |                                
     |     +----- Sulcularia          
     |  +--+                          
     |  |  |  +-- Anodontoides        
     |  |  +--+                       
     |  |     +-- Strophitus          
     +--+                             
        |     +-- Prolasmidonta       
        |  +--+                       
        |  |  +-- Platynaias          
        +--+                          
           |  +-- Alasminota          
           +--+                       
              +-- Alasmidonta         

Wu et al., 2018 [Publ 3836], fig. 2

iTtTbiriSoTroTroSiD
22025133--
  +-------- Strophitus         
  |                            
--+  +----- Platynaias         
  |  |                         
  +--+----- Alasmidonta        
     |                         
     |  +-- Pyganodon_cataracta **
     +--+                      
        +-- Pyganodon_grandis **  

Graf & Ó Foighil, 2000 [Publ 2648], fig. 2B

iTtTbiriSoTroTroSiD
22022833--
        +-- Alasmidonta       
  +-----+                     
  |     +-- Lasmigona         
--+                           
  |  +----- Strophitus        
  +--+                        
     |  +-- Pyganodon_grandis ** 
     +--+                     
        +-- Pyganodon_fragilis **

Walker et al., 2006 [Publ 2666], fig. 4

iTtTbiriSoTroTroSiD
22021300--
  +-- Pyganodon_fragilis **
--+                     
  +-- Pyganodon_grandis ** 

King et al., 1999 [Publ 2699], fig. 2

iTtTbiriSoTroTroSiD
2202775--
           +-- Pyganodon_grandis ** 
  +--------+                     
  |        +-- Pyganodon_fragilis **
  |                              
--+        +-- Lasmigona         
  |  +-----+                     
  |  |     +-- Pterosyna         
  +--+                           
     |  +----- Strophitus        
     +--+                        
        |  +-- Prolasmidonta     
        +--+                     
           +-- Platynaias        

Rosenberg et al., 1997 [Publ 2720], fig. 2A

iTtTbiriSoTroTroSiD
21702201118
  +-- Gonidea            
  |                      
  +-- Pyganodon_grandis **  
  |                      
  +-- Utterbackia        
  |                      
  +-- Pyganodon_cataracta **
  |                      
  +-- Lampsilis_straminea
  |                      
  +-- Lampsilis_teres    
  |                      
  +-- Megalonaias        
  |                      
  +-- Obliquaria         
  |                      
--+-- Theliderma         
  |                      
  +-- Quadrula           
  |                      
  +-- Uniomerus          
  |                      
  +-- Amblema            
  |                      
  +-- Elliptio           
  |                      
  +-- Fusconaia          
  |                      
  +-- Plectomerus        
  |                      
  +-- Pleurobema         
  |                      
  +-- Unio               

Hoeh et al., 2002 [Publ 2673], fig. 1-M

iTtTbiriSoTroTroSiD
2202700--
  +-- Pyganodon_fragilis **
--+                     
  +-- Pyganodon_grandis ** 

Hoeh et al., 1996 [Publ 2694], fig. 2

iTtTbiriSoTroTroSiD
2202200--
  +-- Pyganodon_fragilis **
--+                     
  +-- Pyganodon_grandis ** 

Rosenberg et al., 1997 [Publ 2720], fig. 2B

iTtTbiriSoTroTroSiD
21702201118
  +-- Gonidea            
  |                      
  +-- Pyganodon_grandis **  
  |                      
  +-- Utterbackia        
  |                      
  +-- Pyganodon_cataracta **
  |                      
  +-- Lampsilis_straminea
  |                      
  +-- Lampsilis_teres    
  |                      
  +-- Megalonaias        
  |                      
  +-- Obliquaria         
  |                      
--+-- Theliderma         
  |                      
  +-- Quadrula           
  |                      
  +-- Uniomerus          
  |                      
  +-- Amblema            
  |                      
  +-- Elliptio           
  |                      
  +-- Fusconaia          
  |                      
  +-- Plectomerus        
  |                      
  +-- Scriptolamprotula  
  |                      
  +-- Unio               

Chase et al., 2018 [Publ 3847], fig. 4

iTtTbiriSoTroTroSiD
22023796--
        +----- Utterbackia        
  +-----+                         
  |     |  +-- Pyganodon_lacustris **
  |     +--+                      
  |        +-- Pyganodon_grandis **  
--+                               
  |        +-- Lasmigona          
  |  +-----+                      
  |  |     +-- Pterosyna          
  +--+                            
     |  +----- Alasmidonta        
     +--+                         
        |  +-- Strophitus         
        +--+                      
           +-- Platynaias         

Whelan et al., 2023 [Publ 4287], fig. 4

iTtTbiriSoTroTroSiD
2202252310--
  +-------------------- Sulcularia         
  |                                        
  |           +-------- Utterbackiana      
--+  +--------+                            
  |  |        |  +----- Alasminota         
  |  |        +--+                         
  |  |           |  +-- Arcidens           
  +--+           +--+                      
     |              +-- Pseudodontoideus   
     |                                     
     |  +-------------- Alasmidonta        
     |  |                                  
     +--+  +----------- Platynaias         
        |  |                               
        +--+  +-------- Strophitus         
           |  |                            
           +--+     +-- Pyganodon_grandis **  
              |  +--+                      
              |  |  +-- Pyganodon_cataracta **
              +--+                         
                 |  +-- Utterbackia        
                 +--+                      
                    +-- Anodontoides       

Walker et al., 2006 [Publ 2666], fig. 6-M

iTtTbiriSoTroTroSiD
22021200--
  +-- Pyganodon_fragilis **
--+                     
  +-- Pyganodon_grandis ** 

Walker et al., 2006 [Publ 2666], fig. 3

iTtTbiriSoTroTroSiD
22021300--
  +-- Pyganodon_fragilis **
--+                     
  +-- Pyganodon_grandis ** 

Hoeh et al., 2002 [Publ 2673], fig. 1-F

iTtTbiriSoTroTroSiD
2202700--
  +-- Pyganodon_fragilis **
--+                     
  +-- Pyganodon_grandis ** 

Breton et al., 2011 [Publ 3376], fig. 3

iTtTbiriSoTroTroSiD
22023696--
              +-- Pterosyna          
  +-----------+                      
  |           +-- Lasmigona          
--+                                  
  |  +----------- Strophitus         
  |  |                               
  +--+        +-- Platynaias         
     |  +-----+                      
     |  |     +-- Alasmidonta        
     +--+                            
        |  +----- Utterbackia        
        +--+                         
           |  +-- Pyganodon_lacustris **
           +--+                      
              +-- Pyganodon_grandis **  

Graf & Ó Foighil, 2000 [Publ 2648], fig. 2A

iTtTbiriSoTroTroSiD
22022833--
        +-- Alasmidonta       
  +-----+                     
  |     +-- Lasmigona         
--+                           
  |  +----- Strophitus        
  +--+                        
     |  +-- Pyganodon_grandis ** 
     +--+                     
        +-- Pyganodon_fragilis **

Walker et al., 2006 [Publ 2666], fig. 2

iTtTbiriSoTroTroSiD
22021300--
  +-- Pyganodon_fragilis **
--+                     
  +-- Pyganodon_grandis ** 

Zanatta & Harris, 2013 [Publ 3530], fig. 2

iTtTbiriSoTroTroSiD
1101400--
-- Pyganodon_grandis **

Zanatta & Murphy, 2006 [Publ 2672], fig. 2

iTtTbiriSoTroTroSiD
11015600--
-- Pyganodon_grandis **

Zieritz et al., 2021 [Publ 4231], fig. 3-M_4

iTtTbiriSoTroTroSiD
11012211--
  +-- Utterbackia      
--+                    
  +-- Pyganodon_grandis **

Wu et al., 2020 [Publ 4121], fig. 3

iTtTbiriSoTroTroSiD
11014832--
  +----- Platynaias       
--+                       
  |  +-- Pyganodon_grandis **
  +--+                    
     +-- Utterbackia      

Graf & Ó Foighil, 2000 [Publ 2649], fig. 1_2

iTtTbiriSoTroTroSiD
11011000--
-- Pyganodon_grandis **

Chen et al., 2012 [Publ 3624], fig. 4

iTtTbiriSoTroTroSiD
1101600--
-- Pyganodon_grandis **

Jeratthitikul et al., 2022 [Publ 4260], fig. S2_2

iTtTbiriSoTroTroSiD
11017544--
        +-- Alasmidonta      
  +-----+                    
  |     +-- Lasmigona        
--+                          
  |  +----- Pyganodon_grandis **
  +--+                       
     |  +-- Strophitus       
     +--+                    
        +-- Simpsonaias      

Froufe et al., 2019 [Publ 3936], fig. 3

iTtTbiriSoTroTroSiD
11014332--
  +----- Pterosyna        
--+                       
  |  +-- Pyganodon_grandis **
  +--+                    
     +-- Utterbackia      

Sheng et al., 2014 [Publ 3704], fig. 2

iTtTbiriSoTroTroSiD
1101700--
-- Pyganodon_grandis **

Whelan et al., 2011 [Publ 3380], fig. 1-ML

iTtTbiriSoTroTroSiD
11013511--
  +-- Pyganodon_grandis **
--+                    
  +-- Lasmigona        

Chong et al., 2008 [Publ 2668], fig. 3

iTtTbiriSoTroTroSiD
11011777--
-- Pyganodon_fragilis **

Plazzi et al., 2011 [Publ 3676], fig. 5

iTtTbiriSoTroTroSiD
11011700--
-- Pyganodon_grandis **

Campbell & Lydeard, 2026 [Publ 4810], fig. 3_5

iTtTbiriSoTroTroSiD
110114075--
        +-- Pyganodon_grandis **
  +-----+                    
  |     +-- Utterbackia      
  |                          
--+     +-- Pterosyna        
  |  +--+                    
  |  |  +-- Prolasmidonta    
  +--+                       
     |  +-- Alasmidonta      
     +--+                    
        +-- Platynaias       

Curole & Kocher, 2005 [Publ 2682], fig. 1

iTtTbiriSoTroTroSiD
11011000--
-- Pyganodon_grandis **

Wu et al., 2023 [Publ 4339], fig. 4_S5-aa

iTtTbiriSoTroTroSiD
11019565--
        +-- Pyganodon_grandis **
  +-----+                    
  |     +-- Utterbackia      
  |                          
--+     +-- Alasmidonta      
  |  +--+                    
  |  |  +-- Platynaias       
  +--+                       
     |  +-- Prolasmidonta    
     +--+                    
        +-- Pterosyna        

Amaro et al., 2017 [Publ 3791], fig. 3A-M

iTtTbiriSoTroTroSiD
1101611--
  +-- Pyganodon_grandis **
--+                    
  +-- Utterbackia      

Sano et al., 2020 [Publ 4138], fig. 3

iTtTbiriSoTroTroSiD
11016754--
        +-- Pyganodon_grandis **
  +-----+                    
  |     +-- Utterbackia      
--+                          
  |  +----- Alasmidonta      
  +--+                       
     |  +-- Platynaias       
     +--+                    
        +-- Prolasmidonta    

Amaro et al., 2017 [Publ 3791], fig. 2-M

iTtTbiriSoTroTroSiD
1101922--
-- Pyganodon_grandis **

Manendo et al., 2008 [Publ 2669], fig. 1

iTtTbiriSoTroTroSiD
11011211--
  +-- Platynaias       
--+                    
  +-- Pyganodon_grandis **

Froufe et al., 2015 [Publ 3664], fig. 1-M

iTtTbiriSoTroTroSiD
1101711--
  +-- Utterbackia      
--+                    
  +-- Pyganodon_grandis **

Amaro et al., 2017 [Publ 3791], fig. 3A

iTtTbiriSoTroTroSiD
11011132--
  +----- Platynaias       
--+                       
  |  +-- Pyganodon_grandis **
  +--+                    
     +-- Utterbackia      

Guerra et al., 2019 [Publ 4168], fig. 1-M

iTtTbiriSoTroTroSiD
11012111--
  +-- Utterbackia      
--+                    
  +-- Pyganodon_grandis **

Bolotov et al., 2018 [Publ 3826], fig. 2

iTtTbiriSoTroTroSiD
11018144--
  +----------- Pyganodon_grandis **
--+                             
  |  +-------- Simpsonaias      
  +--+                          
     |  +----- Strophitus       
     +--+                       
        |  +-- Alasmidonta      
        +--+                    
           +-- Lasmigona        

Graf, 2002 [Publ 2651], fig. 2

iTtTbiriSoTroTroSiD
11011711--
  +-- Alasmidonta      
--+                    
  +-- Pyganodon_grandis **

Wu et al., 2021 [Publ 4366], fig. 3-BI

iTtTbiriSoTroTroSiD
11017364--
        +-- Pyganodon_grandis **
  +-----+                    
  |     +-- Utterbackia      
--+                          
  |  +----- Prolasmidonta    
  +--+                       
     |  +-- Alasmidonta      
     +--+                    
        +-- Platynaias       

Soroka & Burzynski, 2017 [Publ 3837], fig. 1

iTtTbiriSoTroTroSiD
11012232--
  +----- Platynaias       
--+                       
  |  +-- Pyganodon_grandis **
  +--+                    
     +-- Utterbackia      

Wu et al., 2024 [Publ 4350], fig. 8b_S2

iTtTbiriSoTroTroSiD
11019165--
           +-- Pyganodon_grandis **
  +--------+                    
  |        +-- Utterbackia      
--+                             
  |  +-------- Pterosyna        
  +--+                          
     |  +----- Prolasmidonta    
     +--+                       
        |  +-- Alasmidonta      
        +--+                    
           +-- Platynaias       

Araujo et al., 2018 [Publ 3779], fig. 1

iTtTbiriSoTroTroSiD
11011711--
  +-- Pyganodon_grandis **
--+                    
  +-- Alasmidonta      

Wu et al., 2019 [Publ 3864], fig. 3

iTtTbiriSoTroTroSiD
11014532--
  +----- Platynaias       
--+                       
  |  +-- Pyganodon_grandis **
  +--+                    
     +-- Utterbackia      

Huang et al., 2019 [Publ 3843], fig. 2

iTtTbiriSoTroTroSiD
110119965--
  +-- Pyganodon_grandis **
--+                    
  +-- Utterbackia      

Wu et al., 2026 [Publ 4811], fig. 4

iTtTbiriSoTroTroSiD
11019465--
           +-- Pyganodon_grandis **
  +--------+                    
  |        +-- Utterbackia      
--+                             
  |  +-------- Pterosyna        
  +--+                          
     |  +----- Prolasmidonta    
     +--+                       
        |  +-- Alasmidonta      
        +--+                    
           +-- Platynaias       

Burzynski & Soroka, 2018 [Publ 3862], fig. 3

iTtTbiriSoTroTroSiD
1101311--
  +-- Utterbackia      
--+                    
  +-- Pyganodon_grandis **

Whelan et al., 2011 [Publ 3380], fig. 1-MP

iTtTbiriSoTroTroSiD
11013511--
  +-- Pyganodon_grandis **
--+                    
  +-- Lasmigona        

Bolotov et al., 2017 [Publ 3761], fig. S2

iTtTbiriSoTroTroSiD
110113744--
  +----- Pyganodon_grandis **
  |                       
  +----- Simpsonaias      
--+                       
  +----- Strophitus       
  |                       
  |  +-- Alasmidonta      
  +--+                    
     +-- Lasmigona        

Hewitt et al., 2019 [Publ 3962], fig. 2

iTtTbiriSoTroTroSiD
1101900--
-- Pyganodon_grandis **

Wu et al., 2022 [Publ 4238], fig. 3

iTtTbiriSoTroTroSiD
11017332--
  +----- Platynaias       
--+                       
  |  +-- Pyganodon_grandis **
  +--+                    
     +-- Utterbackia      

Sano et al., 2020 [Publ 4138], fig. 2

iTtTbiriSoTroTroSiD
11016754--
        +-- Pyganodon_grandis **
  +-----+                    
  |     +-- Utterbackia      
--+                          
  |  +----- Alasmidonta      
  +--+                       
     |  +-- Prolasmidonta    
     +--+                    
        +-- Platynaias       

Krebs, 2004 [Publ 2692], fig. 2

iTtTbiriSoTroTroSiD
1101411--
  +-- Lasmigona        
--+                    
  +-- Pyganodon_grandis **

Bolotov et al., 2017 [Publ 3764], fig. S1

iTtTbiriSoTroTroSiD
110112344--
-- Pyganodon_grandis **

Pavan-Kumar et al., 2022 [Publ 4263], fig. S5

iTtTbiriSoTroTroSiD
11013800--
-- Pyganodon_grandis **

Soroka, 2008 [Publ 3695], fig. 1

iTtTbiriSoTroTroSiD
1101300--
-- Pyganodon_grandis **

Froufe et al., 2019 [Publ 3936], fig. 6

iTtTbiriSoTroTroSiD
11014332--
  +----- Pterosyna        
--+                       
  |  +-- Pyganodon_grandis **
  +--+                    
     +-- Utterbackia      

Soroka & Burzynski, 2018 [Publ 3762], fig. 3

iTtTbiriSoTroTroSiD
1101611--
  +-- Pyganodon_grandis **
--+                    
  +-- Utterbackia      

Zhou et al., 2016 [Publ 3710], fig. 1

iTtTbiriSoTroTroSiD
11011932--
  +----- Platynaias       
--+                       
  |  +-- Pyganodon_grandis **
  +--+                    
     +-- Utterbackia      

Guerra et al., 2017 [Publ 3772], fig. 2b-M

iTtTbiriSoTroTroSiD
1101711--
  +-- Utterbackia      
--+                    
  +-- Pyganodon_grandis **

Huang et al., 2019 [Publ 3843], fig. 3

iTtTbiriSoTroTroSiD
11015532--
  +----- Lasmigona        
--+                       
  |  +-- Pyganodon_grandis **
  +--+                    
     +-- Utterbackia      

Smith, 2021 [Publ 4331], fig. 1

iTtTbiriSoTroTroSiD
11011911--
  +-- Pyganodon_grandis **
--+                    
  +-- Utterbackia      

Lopes-Lima et al., 2019 [Publ 3901], fig. 4

iTtTbiriSoTroTroSiD
11012500--
-- Pyganodon_grandis **

Liu et al., 2023 [Publ 4310], fig. 5

iTtTbiriSoTroTroSiD
11012322--
  +-- Pyganodon_grandis **
--+                    
  +-- Strophitus       

Wu et al., 2020 [Publ 4147], fig. 3

iTtTbiriSoTroTroSiD
11012921--
  +-- Pyganodon_grandis **
--+                    
  +-- Utterbackia      

Huang et al., 2019 [Publ 3843], fig. S3

iTtTbiriSoTroTroSiD
110119765--
  +-- Pyganodon_grandis **
--+                    
  +-- Utterbackia      

Guerra et al., 2017 [Publ 3772], fig. 2a-M

iTtTbiriSoTroTroSiD
1101711--
  +-- Utterbackia      
--+                    
  +-- Pyganodon_grandis **

Amaro et al., 2017 [Publ 3791], fig. 3B

iTtTbiriSoTroTroSiD
11011132--
  +----- Platynaias       
--+                       
  |  +-- Pyganodon_grandis **
  +--+                    
     +-- Utterbackia      

Wu et al., 2022 [Publ 4238], fig. 2e

iTtTbiriSoTroTroSiD
11011711--
  +-- Utterbackia      
--+                    
  +-- Pyganodon_grandis **

Burzynski & Soroka, 2018 [Publ 3862], fig. 5a

iTtTbiriSoTroTroSiD
11011911--
  +-- Utterbackia      
--+                    
  +-- Pyganodon_grandis **

Lopes-Lima et al., 2020 [Publ 4080], fig. 2-4

iTtTbiriSoTroTroSiD
110112144--
  +----- Pyganodon_grandis **
  |                       
  +----- Simpsonaias      
--+                       
  +----- Strophitus       
  |                       
  |  +-- Alasmidonta      
  +--+                    
     +-- Lasmigona        

Inoue et al., 2013 [Publ 3579], fig. 3

iTtTbiriSoTroTroSiD
1101800--
-- Pyganodon_grandis **

Fukata & Iigo, 2020 [Publ 4106], fig. 1

iTtTbiriSoTroTroSiD
11015333--
     +-- Pyganodon_grandis **
  +--+                    
  |  +-- Utterbackia      
--+                       
  |  +-- Alasmidonta      
  +--+                    
     +-- Prolasmidonta    

Guerra et al., 2019 [Publ 4168], fig. 2

iTtTbiriSoTroTroSiD
11014042--
  +----- Platynaias       
--+                       
  |  +-- Pyganodon_grandis **
  +--+                    
     +-- Utterbackia      

Hoeh et al., 2009 [Publ 2716], fig. 3

iTtTbiriSoTroTroSiD
11014633--
  +-------- Lasmigona        
--+                          
  |  +----- Alasmidonta      
  +--+                       
     |  +-- Strophitus       
     +--+                    
        +-- Pyganodon_grandis **

Inoue et al., 2013 [Publ 3528], fig. 3

iTtTbiriSoTroTroSiD
11011600--
-- Pyganodon_grandis **

Marshall et al., 2014 [Publ 3593], fig. 1

iTtTbiriSoTroTroSiD
11011300--
-- Pyganodon_grandis **

Curole & Kocher, 2005 [Publ 2682], fig. 1-M

iTtTbiriSoTroTroSiD
11011111--
  +-- Utterbackiana    
--+                    
  +-- Pyganodon_grandis **

Feng et al., 2016 [Publ 3800], fig. 2

iTtTbiriSoTroTroSiD
11011311--
-- Pyganodon_grandis **

Campbell et al., 2005 [Publ 2660], fig. 2

iTtTbiriSoTroTroSiD
110110133--
-- Pyganodon_grandis **

Wu et al., 2023 [Publ 4339], fig. 4_S5-nt

iTtTbiriSoTroTroSiD
11019565--
           +-- Pyganodon_grandis **
  +--------+                    
  |        +-- Utterbackia      
--+                             
  |  +-------- Pterosyna        
  +--+                          
     |  +----- Prolasmidonta    
     +--+                       
        |  +-- Alasmidonta      
        +--+                    
           +-- Platynaias       

Wen et al., 2017 [Publ 3795], fig. 3-M

iTtTbiriSoTroTroSiD
1101511--
  +-- Utterbackia      
--+                    
  +-- Pyganodon_grandis **

Boyer et al., 2011 [Publ 2718], fig. 3

iTtTbiriSoTroTroSiD
11013455--
  +----- Alasmidonta      
  |                       
  +----- Pyganodon_grandis **
  |                       
--+  +-- Pterosyna        
  +--+                    
  |  +-- Lasmigona        
  |                       
  |  +-- Platynaias       
  +--+                    
     +-- Strophitus       

Wu et al., 2021 [Publ 4366], fig. 6

iTtTbiriSoTroTroSiD
11019022--
  +-- Pyganodon_grandis **
--+                    
  +-- Strophitus       

Chase et al., 2018 [Publ 3861], fig. 1

iTtTbiriSoTroTroSiD
11011011--
  +-- Utterbackia      
--+                    
  +-- Pyganodon_grandis **

Burzynski et al., 2017 [Publ 3774], fig. 1-top

iTtTbiriSoTroTroSiD
11011211--
  +-- Utterbackia      
--+                    
  +-- Pyganodon_grandis **

Krebs, 2004 [Publ 2692], fig. 2-M

iTtTbiriSoTroTroSiD
1101311--
  +-- Lasmigona        
--+                    
  +-- Pyganodon_grandis **

Cha et al., 2018 [Publ 3916], fig. 1

iTtTbiriSoTroTroSiD
11013732--
  +----- Platynaias       
--+                       
  |  +-- Pyganodon_grandis **
  +--+                    
     +-- Utterbackia      

Guerra et al., 2017 [Publ 3772], fig. 2b

iTtTbiriSoTroTroSiD
11012442--
  +----- Platynaias       
--+                       
  |  +-- Pyganodon_grandis **
  +--+                    
     +-- Utterbackia      

Pavan-Kumar et al., 2022 [Publ 4263], fig. 4

iTtTbiriSoTroTroSiD
11013600--
-- Pyganodon_grandis **

Jadhav & Jamkhedkar, 2009 [Publ 3697], fig. 11

iTtTbiriSoTroTroSiD
11012433--
  +----- Lasmigona        
  |                       
--+  +-- Strophitus       
  |  |                    
  +--+-- Alasmidonta      
     |                    
     +-- Pyganodon_grandis **

Hou et al., 2025 [Publ 4445], fig. 5

iTtTbiriSoTroTroSiD
11015265--
           +-- Pyganodon_grandis **
  +--------+                    
  |        +-- Utterbackia      
--+                             
  |  +-------- Pterosyna        
  +--+                          
     |  +----- Prolasmidonta    
     +--+                       
        |  +-- Platynaias       
        +--+                    
           +-- Alasmidonta      

Aunins et al., 2018 [Publ 3863], fig. 1

iTtTbiriSoTroTroSiD
11013943--
     +-- Prolasmidonta    
  +--+                    
  |  +-- Alasmidonta      
--+                       
  |  +-- Pyganodon_grandis **
  +--+                    
     +-- Utterbackia      

Wang et al., 2018 [Publ 3865], fig. 2

iTtTbiriSoTroTroSiD
11013011--
  +-- Pyganodon_grandis **
--+                    
  +-- Platynaias       

Roe & Hoeh, 2003 [Publ 2655], fig. 4f2

iTtTbiriSoTroTroSiD
11013011--
-- Pyganodon_grandis **

Amaro et al., 2017 [Publ 3791], fig. 3B-M

iTtTbiriSoTroTroSiD
1101611--
  +-- Utterbackia      
--+                    
  +-- Pyganodon_grandis **

Zanatta & Murphy, 2006 [Publ 2672], fig. 1

iTtTbiriSoTroTroSiD
11015500--
-- Pyganodon_grandis **

Burzynski et al., 2017 [Publ 3774], fig. 1-bottom

iTtTbiriSoTroTroSiD
11011211--
  +-- Utterbackia      
--+                    
  +-- Pyganodon_grandis **

Fonseca et al., 2016 [Publ 3775], fig. 1-M

iTtTbiriSoTroTroSiD
1101811--
  +-- Utterbackia      
--+                    
  +-- Pyganodon_grandis **

Huang et al., 2013 [Publ 3629], fig. 3-M

iTtTbiriSoTroTroSiD
1101511--
  +-- Pyganodon_grandis **
--+                    
  +-- Utterbackia      

Guerra et al., 2019 [Publ 4168], fig. 2-M

iTtTbiriSoTroTroSiD
11012111--
  +-- Utterbackia      
--+                    
  +-- Pyganodon_grandis **

Huang et al., 2019 [Publ 3843], fig. S4

iTtTbiriSoTroTroSiD
110119965--
-- Pyganodon_grandis **

Huang et al., 2018 [Publ 3828], fig. 6

iTtTbiriSoTroTroSiD
11014132--
  +----- Platynaias       
--+                       
  |  +-- Pyganodon_grandis **
  +--+                    
     +-- Utterbackia      

Froufe et al., 2015 [Publ 3664], fig. 1

iTtTbiriSoTroTroSiD
11011111--
  +-- Utterbackia      
--+                    
  +-- Pyganodon_grandis **

Wu et al., 2021 [Publ 4366], fig. 3-ML

iTtTbiriSoTroTroSiD
11017364--
        +-- Pyganodon_grandis **
  +-----+                    
  |     +-- Utterbackia      
--+                          
  |  +----- Prolasmidonta    
  +--+                       
     |  +-- Alasmidonta      
     +--+                    
        +-- Platynaias       

Lopes-Lima et al., 2017 [Publ 3792], fig. 2

iTtTbiriSoTroTroSiD
11013132--
  +----- Platynaias       
--+                       
  |  +-- Pyganodon_grandis **
  +--+                    
     +-- Utterbackia      

Pfeiffer & Graf, 2015 [Publ 3620], fig. 2

iTtTbiriSoTroTroSiD
11013911--
  +-- Pyganodon_grandis **
--+                    
  +-- Lasmigona        

Inoue et al., 2014 [Publ 3635], fig. 3A

iTtTbiriSoTroTroSiD
110119138--
     +-------- Pseudodontoideus 
  +--+                          
  |  |  +----- Lasmigona        
  |  +--+                       
  |     |  +-- Pterosyna        
--+     +--+                    
  |        +-- Arcidens         
  |                             
  |  +-------- Strophitus       
  |  |                          
  +--+     +-- Pyganodon_grandis **
     |  +--+                    
     |  |  +-- Utterbackia      
     +--+                       
        |  +-- Platynaias       
        +--+                    
           +-- Alasmidonta      

Jeratthitikul et al., 2022 [Publ 4260], fig. S1_1

iTtTbiriSoTroTroSiD
11017544--
        +-- Pyganodon_grandis **
  +-----+                    
  |     +-- Simpsonaias      
--+                          
  |  +----- Strophitus       
  +--+                       
     |  +-- Alasmidonta      
     +--+                    
        +-- Lasmigona        

Campbell & Lydeard, 2026 [Publ 4810], fig. 4

iTtTbiriSoTroTroSiD
11014611--
  +-- Pyganodon_grandis **
--+                    
  +-- Utterbackia      

Roe & Hoeh, 2003 [Publ 2655], fig. 4f3

iTtTbiriSoTroTroSiD
11013011--
  +-- Pyganodon_grandis **
--+                    
  +-- Strophitus       

Froufe et al., 2019 [Publ 3936], fig. 4

iTtTbiriSoTroTroSiD
11011811--
  +-- Utterbackia      
--+                    
  +-- Pyganodon_grandis **

Hoeh et al., 2001 [Publ 2652], fig. 14f4

iTtTbiriSoTroTroSiD
11013011--
  +-- Strophitus       
--+                    
  +-- Pyganodon_grandis **

Graf, 2000 [Publ 2647], fig. 1

iTtTbiriSoTroTroSiD
11011600--
-- Pyganodon **

Chen et al., 2020 [Publ 4170], fig. 1

iTtTbiriSoTroTroSiD
11013354--
  +----- Platynaias       
--+                       
  |  +-- Utterbackia      
  +--+                    
     +-- Pyganodon_grandis **

Hoeh et al., 2009 [Publ 2716], fig. 5

iTtTbiriSoTroTroSiD
11014533--
  +-------- Lasmigona        
--+                          
  |  +----- Alasmidonta      
  +--+                       
     |  +-- Strophitus       
     +--+                    
        +-- Pyganodon_grandis **

Burzynski & Soroka, 2018 [Publ 3862], fig. 5b

iTtTbiriSoTroTroSiD
1101911--
  +-- Utterbackia      
--+                    
  +-- Pyganodon_grandis **

Wei et al., 2016 [Publ 3665], fig. 0

iTtTbiriSoTroTroSiD
1101500--
-- Pyganodon_grandis **

Hou et al., 2024 [Publ 4400], fig. 4

iTtTbiriSoTroTroSiD
11017565--
           +-- Pyganodon_grandis **
  +--------+                    
  |        +-- Utterbackia      
--+                             
  |  +-------- Pterosyna        
  +--+                          
     |  +----- Prolasmidonta    
     +--+                       
        |  +-- Alasmidonta      
        +--+                    
           +-- Platynaias       

Hoeh et al., 2001 [Publ 2652], fig. 14f2

iTtTbiriSoTroTroSiD
11013011--
-- Pyganodon_grandis **

Liu et al., 2023 [Publ 4310], fig. 4

iTtTbiriSoTroTroSiD
11012322--
  +----- Lasmigona        
--+                       
  |  +-- Strophitus       
  +--+                    
     +-- Pyganodon_grandis **

Wu et al., 2024 [Publ 4350], fig. 8a_S1

iTtTbiriSoTroTroSiD
11019165--
           +-- Pyganodon_grandis **
  +--------+                    
  |        +-- Utterbackia      
--+                             
  |  +-------- Pterosyna        
  +--+                          
     |  +----- Prolasmidonta    
     +--+                       
        |  +-- Alasmidonta      
        +--+                    
           +-- Platynaias       

Sano et al., 2020 [Publ 4138], fig. 4

iTtTbiriSoTroTroSiD
11016754--
        +-- Pyganodon_grandis **
  +-----+                    
  |     +-- Utterbackia      
--+                          
  |  +----- Alasmidonta      
  +--+                       
     |  +-- Prolasmidonta    
     +--+                    
        +-- Platynaias       

Froufe et al., 2019 [Publ 3936], fig. 3-M

iTtTbiriSoTroTroSiD
11011811--
  +-- Utterbackia      
--+                    
  +-- Pyganodon_grandis **

Pfeiffer et al., 2019 [Publ 3937], fig. 6

iTtTbiriSoTroTroSiD
11015600--
-- Pyganodon_grandis **

Dai et al., 2023 [Publ 4285], fig. 5

iTtTbiriSoTroTroSiD
11015222--
  +----- Platynaias       
--+                       
  |  +-- Pyganodon_grandis **
  +--+                    
     +-- Utterbackia      

Dai et al., 2024 [Publ 4386], fig. 6

iTtTbiriSoTroTroSiD
11014111--
  +-- Pyganodon_grandis **
--+                    
  +-- Utterbackia      

Lopes-Lima et al., 2019 [Publ 3901], fig. 2

iTtTbiriSoTroTroSiD
11012700--
-- Pyganodon_grandis **

Wu et al., 2018 [Publ 4143], fig. 2

iTtTbiriSoTroTroSiD
11012121--
  +-- Pyganodon_grandis **
--+                    
  +-- Utterbackia      

Krebs et al., 2003 [Publ 2691], fig. 3

iTtTbiriSoTroTroSiD
11013287--
-- Pyganodon_grandis **

Pfeiffer & Graf, 2013 [Publ 3531], fig. 2

iTtTbiriSoTroTroSiD
11013022--
  +----- Strophitus       
--+                       
  |  +-- Platynaias       
  +--+                    
     +-- Pyganodon_grandis **

Graf & Cummings, 2006 [Publ 1968], fig. 2

iTtTbiriSoTroTroSiD
11014633--
  +-------- Lasmigona        
--+                          
  |  +----- Alasmidonta      
  +--+                       
     |  +-- Pyganodon_grandis **
     +--+                    
        +-- Strophitus       

Lopes-Lima et al., 2017 [Publ 3745], fig. 1-2

iTtTbiriSoTroTroSiD
11017944--
        +-- Pyganodon_grandis **
  +-----+                    
  |     +-- Simpsonaias      
--+                          
  |  +----- Strophitus       
  +--+                       
     |  +-- Alasmidonta      
     +--+                    
        +-- Lasmigona        

Chase et al., 2018 [Publ 3861], fig. 1-M

iTtTbiriSoTroTroSiD
11011011--
  +-- Utterbackia      
--+                    
  +-- Pyganodon_grandis **

Wu et al., 2016 [Publ 3711], fig. 1

iTtTbiriSoTroTroSiD
11012021--
  +-- Pyganodon_grandis **
--+                    
  +-- Utterbackia      

Wu et al., 2021 [Publ 4366], fig. 4

iTtTbiriSoTroTroSiD
11016854--
        +-- Pyganodon_grandis **
  +-----+                    
  |     +-- Utterbackia      
--+                          
  |  +----- Prolasmidonta    
  +--+                       
     |  +-- Platynaias       
     +--+                    
        +-- Alasmidonta      

Wu et al., 2024 [Publ 4379], fig. 5

iTtTbiriSoTroTroSiD
11015365--
           +-- Pyganodon_grandis **
  +--------+                    
  |        +-- Utterbackia      
--+                             
  |  +-------- Pterosyna        
  +--+                          
     |  +----- Prolasmidonta    
     +--+                       
        |  +-- Alasmidonta      
        +--+                    
           +-- Platynaias       

Lopes-Lima et al., 2017 [Publ 3792], fig. 2-M

iTtTbiriSoTroTroSiD
1101911--
  +-- Utterbackia      
--+                    
  +-- Pyganodon_grandis **

Riccardi et al., 2020 [Publ 4089], fig. 2

iTtTbiriSoTroTroSiD
11011832--
  +----- Platynaias       
--+                       
  |  +-- Pyganodon_grandis **
  +--+                    
     +-- Utterbackia      

Lopes-Lima et al., 2019 [Publ 3901], fig. 3

iTtTbiriSoTroTroSiD
11012800--
-- Pyganodon_grandis **

Hewitt et al., 2018 [Publ 3758], fig. 5

iTtTbiriSoTroTroSiD
1101855--
  +-------- Pyganodon_grandis **
  |                          
  |     +-- Platynaias       
--+-----+                    
  |     +-- Strophitus       
  |                          
  |  +----- Lasmigona        
  +--+                       
     |  +-- Arcidens         
     +--+                    
        +-- Pterosyna        

Dai et al., 2025 [Publ 4440], fig. 3

iTtTbiriSoTroTroSiD
11018732--
  +----- Platynaias       
--+                       
  |  +-- Pyganodon_grandis **
  +--+                    
     +-- Utterbackia      

Guerra et al., 2019 [Publ 4168], fig. 1

iTtTbiriSoTroTroSiD
11014042--
  +----- Platynaias       
--+                       
  |  +-- Pyganodon_grandis **
  +--+                    
     +-- Utterbackia      

Soroka, 2008 [Publ 3695], fig. 1-M

iTtTbiriSoTroTroSiD
1101300--
-- Pyganodon_grandis **

Campbell et al., 2005 [Publ 2660], fig. 1

iTtTbiriSoTroTroSiD
110110133--
  +----- Pyganodon_grandis **
--+                       
  |  +-- Lasmigona        
  +--+                    
     +-- Pseudodontoideus 

Bolotov et al., 2017 [Publ 3761], fig. S1

iTtTbiriSoTroTroSiD
110113744--
        +-- Lasmigona        
  +-----+                    
  |     +-- Alasmidonta      
--+                          
  |  +----- Simpsonaias      
  +--+                       
     |  +-- Pyganodon_grandis **
     +--+                    
        +-- Strophitus       

Chen et al., 2025 [Publ 4448], fig. 3

iTtTbiriSoTroTroSiD
11018532--
  +----- Platynaias       
--+                       
  |  +-- Pyganodon_grandis **
  +--+                    
     +-- Utterbackia      

Dai et al., 2024 [Publ 4358], fig. 4

iTtTbiriSoTroTroSiD
11015222--
  +----- Platynaias       
--+                       
  |  +-- Pyganodon_grandis **
  +--+                    
     +-- Utterbackia      

Wang et al., 2025 [Publ 4488], fig. 3B

iTtTbiriSoTroTroSiD
11016465--
           +-- Pyganodon_grandis **
  +--------+                    
  |        +-- Utterbackia      
--+                             
  |  +-------- Pterosyna        
  +--+                          
     |  +----- Prolasmidonta    
     +--+                       
        |  +-- Alasmidonta      
        +--+                    
           +-- Platynaias       

Hoeh et al., 2002 [Publ 2653], fig. 2

iTtTbiriSoTroTroSiD
11013011--
  +-- Pyganodon_grandis **
--+                    
  +-- Strophitus       

Soroka & Burzynski, 2018 [Publ 3762], fig. 3-M

iTtTbiriSoTroTroSiD
1101611--
  +-- Pyganodon_grandis **
--+                    
  +-- Utterbackia      

Guerra et al., 2017 [Publ 3772], fig. 2a

iTtTbiriSoTroTroSiD
11012442--
  +----- Platynaias       
--+                       
  |  +-- Pyganodon_grandis **
  +--+                    
     +-- Utterbackia      

Whelan et al., 2023 [Publ 4287], fig. 3

iTtTbiriSoTroTroSiD
1101272611--
  +-------------------- Utterbackiana    
  |                                      
  |                 +-- Utterbackia      
--+  +--------------+                    
  |  |              +-- Pyganodon_grandis **
  |  |                                   
  +--+           +----- Alasmidonta      
     |  +--------+                       
     |  |        |  +-- Arcidens         
     |  |        +--+                    
     +--+           +-- Pseudodontoideus 
        |                                
        |  +----------- Alasminota       
        |  |                             
        +--+        +-- Anodontoides     
           |  +-----+                    
           |  |     +-- Strophitus       
           +--+                          
              |  +----- Sulcularia       
              +--+                       
                 |  +-- Platynaias       
                 +--+                    
                    +-- Prolasmidonta    

Huang et al., 2013 [Publ 3629], fig. 3

iTtTbiriSoTroTroSiD
11011532--
  +----- Platynaias       
--+                       
  |  +-- Pyganodon_grandis **
  +--+                    
     +-- Utterbackia      

Amaro et al., 2017 [Publ 3791], fig. 2

iTtTbiriSoTroTroSiD
11011543--
     +-- Lasmigona        
  +--+                    
  |  +-- Platynaias       
--+                       
  |  +-- Pyganodon_grandis **
  +--+                    
     +-- Utterbackia      

Hoeh et al., 2009 [Publ 2716], fig. 4

iTtTbiriSoTroTroSiD
11014533--
  +-------- Lasmigona        
--+                          
  |  +----- Alasmidonta      
  +--+                       
     |  +-- Strophitus       
     +--+                    
        +-- Pyganodon_grandis **

Wang et al., 2018 [Publ 3846], fig. 2

iTtTbiriSoTroTroSiD
11013011--
  +-- Pyganodon_grandis **
--+                    
  +-- Platynaias       

Huang et al., 2019 [Publ 3843], fig. 3-M

iTtTbiriSoTroTroSiD
11012211--
  +-- Pyganodon_grandis **
--+                    
  +-- Utterbackia      

Pfeiffer et al., 2019 [Publ 3937], fig. 4-5

iTtTbiriSoTroTroSiD
11015600--
-- Pyganodon_grandis **

Zieritz et al., 2021 [Publ 4231], fig. 3-F_5

iTtTbiriSoTroTroSiD
11014732--
  +----- Platynaias       
--+                       
  |  +-- Pyganodon_grandis **
  +--+                    
     +-- Utterbackia      

Huang et al., 2018 [Publ 3828], fig. 6-M

iTtTbiriSoTroTroSiD
11011611--
  +-- Pyganodon_grandis **
--+                    
  +-- Utterbackia      

Wu et al., 2021 [Publ 4366], fig. 2_I

iTtTbiriSoTroTroSiD
11019022--
  +-- Pyganodon_grandis **
--+                    
  +-- Strophitus       

Boyer et al., 2011 [Publ 2718], fig. 4

iTtTbiriSoTroTroSiD
11013788--
  +-------------- Strophitus       
  |                                
  |        +----- Pterosyna        
--+  +-----+                       
  |  |     |  +-- Lasmigona        
  |  |     +--+                    
  +--+        +-- Arcidens         
     |                             
     |  +-------- Utterbackia      
     |  |                          
     +--+-------- Alasmidonta      
        |                          
        |  +----- Pyganodon_grandis **
        +--+                       
           |  +-- Anodontoides     
           +--+                    
              +-- Platynaias       

Wu et al., 2023 [Publ 4296], fig. 4

iTtTbiriSoTroTroSiD
11012222--
  +----- Lasmigona        
--+                       
  |  +-- Strophitus       
  +--+                    
     +-- Pyganodon_grandis **

Fonseca et al., 2016 [Publ 3775], fig. 1

iTtTbiriSoTroTroSiD
11013032--
  +----- Platynaias       
--+                       
  |  +-- Pyganodon_grandis **
  +--+                    
     +-- Utterbackia      

Wu et al., 2022 [Publ 4238], fig. 2d

iTtTbiriSoTroTroSiD
11013832--
  +----- Platynaias       
--+                       
  |  +-- Pyganodon_grandis **
  +--+                    
     +-- Utterbackia      

Smith et al., 2018 [Publ 3790], fig. 1

iTtTbiriSoTroTroSiD
110117167--
           +-- Utterbackia      
  +--------+                    
  |        +-- Pyganodon_grandis **
  |                             
--+        +-- Anodontoides     
  |  +-----+                    
  |  |     +-- Strophitus       
  |  |                          
  +--+     +-- Alasmidonta      
     |  +--+                    
     |  |  +-- Alasminota       
     +--+                       
        |  +-- Pseudodontoideus 
        +--+                    
           +-- Utterbackiana    

Bogan & Hoeh, 2000 [Publ 2650], fig. 1

iTtTbiriSoTroTroSiD
11013311--
  +-- Strophitus       
--+                    
  +-- Pyganodon_grandis **
 
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