MUSSELp

MUSSELpdb

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Unionidae

Margaritiferidae

Hyriidae

Etheriidae

Mycetopodidae

Iridinidae


Species & Genus Richness by
Taxonomy

Geography

Summary

North America

Central America

South America

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East Asia

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Species Richness & Endemism by
Geography

Data last updated
Mon 1 Dec 2025

Bivalvia | Unionoida | Unionoidea | Unionidae | Ambleminae

tribe POPENAIADINI Heard & Guckert, 1970: cladomics

6 genera

Cladomics pages are experimental — even more so than the rest of this site!

The purpose of the cladomics pages for each genus and family-group level taxon is to provide statistics and references indicating the extent to which published phylogenetic work supports the classification used here.

The Cladomics Summary provides an overview of the number of studies that have included terminal species representing this taxon as well as an indication of how frequently it has been recovered as monophyletic.

Following the summary, the available published clades representing the taxon are listed.

For more information, visit the Cladomics FARQ (frequently asked rhetorical questions) page. Abbreviations for the various statistics are explained on the FARQ!

Cladomics Summary

number of species = 36 (36 total)
number of subtaxa (rank: genus) = 6
analyzed in 43 cladograms in 27 publications
maximum number of terminals in an analysis = 5 (mean = 1.47, median = 1)
maximum number of subtaxa (genus) = 3 (mean = 1.28, median = 1)

Basic Monophyly

number of cladograms that test basic monophyly (i.e., more than 1 included species) = 11
maximum number of included terminals = 5, (mean = 2.82 median = 2)
maximum number of subtaxa (genus) = 3 (mean = 2.09, median = 2)
proportion of cladograms that support basic monophyly = 1

Rigorous Monophyly

number of cladograms that test rigorous monophyly = 11
(Rigorous monophyly refers to cladograms with terminal species representing more than one subtaxon (genus) taxon and at least one rigorous outgroup (family).
maximum number of included terminals = 5 (mean = 2.82, median = 2)
maximum number of subtaxa (genus) = 3 (mean = 2.09, median = 2)
proportion of cladograms that support rigorous monophyly = 1


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 of Popenaiadini cladogram distances
PCoA Ordination

NJ Tree of Popenaiadini cladogram distances
NJ Tree


Cladograms

Freeman et al., 2025 [Publ 4443], fig. 2

** Top Monophyly Cladogram **

iTtTbiriSoTroTroSiD
4 4 3 3 2 2 1 0
  +-------- Lampsilini 
--+                    
  |  +----- Popenaias **  
  +--+                 
     |  +-- Nephronaias **
     +--+              
        +-- Psoronaias ** 

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

** Top Sister-Group Cladogram **

iTtTbiriSoTroTroSiD
1 1 0 1 101 89 4 --
  +-------------- Quadrulini  
  |                           
--+  +----------- Pleurobemini
  |  |                        
  +--+        +-- Plectomerus 
     |  +-----+               
     |  |     +-- Reginaia    
     +--+                     
        |  +----- Lampsilini  
        +--+                  
           |  +-- Popenaias **   
           +--+               
              +-- Amblema     

Inoue et al., 2020 [Publ 4128], fig. 3

iTtTbiriSoTroTroSiD
5 5 7 2 17 17 3 7
  +-------------- Quadrulini
--+                         
  |  +----------- Reginaia  
  +--+                      
     |  +-------- Amblema   
     +--+                   
        |  +----- Lampsilini
        +--+                
           |  +-- Popenaias ** 
           +--+             
              +-- Psoronaias **

Inoue et al., 2020 [Publ 4128], fig. 2

iTtTbiriSoTroTroSiD
5 5 3 2 18 18 3 8
  +-------------- Quadrulini
--+                         
  |  +----------- Reginaia  
  +--+                      
     |  +-------- Amblema   
     +--+                   
        |  +----- Lampsilini
        +--+                
           |  +-- Popenaias ** 
           +--+             
              +-- Psoronaias **

Pfeiffer et al., 2019 [Publ 3866], fig. 1

iTtTbiriSoTroTroSiD
3 3 2 2 28 27 4 3
  +-------------- Quadrulini  
--+                           
  |  +----------- Pleurobemini
  +--+                        
     |  +-------- Amblemini   
     +--+                     
        |  +----- Lampsilini  
        +--+                  
           |  +-- Popenaias **   
           +--+               
              +-- Psoronaias **  

Smith et al., 2020 [Publ 4129], fig. 2-3

iTtTbiriSoTroTroSiD
2 2 0 2 26 26 4 --
  +-------------- Quadrulini  
--+                           
  |  +----------- Pleurobemini
  +--+                        
     |  +-------- Amblemini   
     +--+                     
        |  +----- Lampsilini  
        +--+                  
           |  +-- Popenaias **   
           +--+               
              +-- Psoronaias **  

Freeman et al., 2025 [Publ 4443], fig. 5

iTtTbiriSoTroTroSiD
2 2 0 2 9 9 4 --
     +----- Lampsilini  
  +--+                  
  |  |  +-- Nephronaias ** 
  |  +--+               
--+     +-- Popenaias **   
  |                     
  |  +----- Amblemini   
  +--+                  
     |  +-- Pleurobemini
     +--+               
        +-- Quadrulini  

Smith et al., 2020 [Publ 4129], fig. 1

iTtTbiriSoTroTroSiD
2 2 0 2 26 26 4 --
  +-------------- Quadrulini  
--+                           
  |  +----------- Pleurobemini
  +--+                        
     |  +-------- Amblemini   
     +--+                     
        |  +----- Lampsilini  
        +--+                  
           |  +-- Popenaias **   
           +--+               
              +-- Psoronaias **  

Freeman et al., 2025 [Publ 4443], fig. 3

iTtTbiriSoTroTroSiD
2 2 0 2 10 10 4 --
     +----- Lampsilini  
  +--+                  
  |  |  +-- Nephronaias ** 
  |  +--+               
--+     +-- Popenaias **   
  |                     
  |  +----- Amblemini   
  +--+                  
     |  +-- Pleurobemini
     +--+               
        +-- Quadrulini  

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

iTtTbiriSoTroTroSiD
2 2 0 2 55 13 4 --
  +-------------- Quadrulini  
--+                           
  |  +----------- Pleurobemini
  +--+                        
     |  +-------- Amblemini   
     +--+                     
        |  +----- Lampsilini  
        +--+                  
           |  +-- Psoronaias **  
           +--+               
              +-- Popenaias **   

Freeman et al., 2025 [Publ 4443], fig. 4

iTtTbiriSoTroTroSiD
2 2 0 2 10 10 4 --
     +----- Amblemini   
  +--+                  
  |  |  +-- Pleurobemini
  |  +--+               
  |     +-- Quadrulini  
--+                     
  |  +----- Obliquaria  
  |  |                  
  |  +----- Toxolasma   
  |  |                  
  +--+  +-- Glebula     
     +--+               
     |  +-- Cyrtonaias  
     |                  
     |  +-- Nephronaias ** 
     +--+               
        +-- Popenaias **   

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

iTtTbiriSoTroTroSiD
2 2 0 2 55 13 4 --
  +----------- Quadrulini  
  |                        
--+        +-- Pleurobemini
  |  +-----+               
  |  |     +-- Amblemini   
  +--+                     
     |  +----- Lampsilini  
     +--+                  
        |  +-- Psoronaias **  
        +--+               
           +-- Popenaias **   

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

iTtTbiriSoTroTroSiD
1 1 0 1 85 14 4 --
  +----------- Quadrulini  
--+                        
  |  +-------- Pleurobemini
  +--+                     
     |  +----- Amblemini   
     +--+                  
        |  +-- Popenaias **   
        +--+               
           +-- Lampsilini  

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

iTtTbiriSoTroTroSiD
1 1 0 1 91 16 4 --
  +----------- Quadrulini  
--+                        
  |  +-------- Pleurobemini
  +--+                     
     |  +----- Amblemini   
     +--+                  
        |  +-- Popenaias **   
        +--+               
           +-- Lampsilini  

Campbell & Lydeard, 2012 [Publ 3308], fig. 2

iTtTbiriSoTroTroSiD
1 1 0 1 41 41 4 --
  +-------------------- Quadrulini  
  |                                 
--+  +----------------- Pleurobemini
  |  |                              
  +--+              +-- Reginaia    
     |  +-----------+               
     |  |           +-- Amblema     
     +--+                           
        |  +----------- Popenaias **   
        |  |                        
        +--+  +-------- Cyrtonaias  
           |  |                     
           +--+-------- Plectomerus 
              |                     
              |  +----- Lemiox      
              +--+                  
                 |  +-- Lampsilis   
                 +--+               
                    +-- Obovaria    

Campbell & Lydeard, 2012 [Publ 3308], fig. 3

iTtTbiriSoTroTroSiD
1 1 0 1 42 42 4 --
  +-------------------------------- Quadrulini          
  |                                                     
  |                 +-------------- Elliptoideus        
  |  +--------------+                                   
  |  |              |  +----------- Plectomerus         
--+  |              +--+                                
  |  |                 |  +-------- Obovaria_unicolor   
  |  |                 +--+                             
  |  |                    |  +----- Obovaria_olivaria   
  |  |                    +--+                          
  |  |                       |  +-- Lampsilis           
  +--+                       +--+                       
     |                          +-- Lemiox              
     |                                                  
     |                    +-------- Cyrtonaias          
     |  +-----------------+                             
     |  |                 |  +----- Reginaia            
     |  |                 +--+                          
     |  |                    |  +-- Popenaias **           
     +--+                    +--+                       
        |                       +-- Amblema             
        |                                               
        |  +----------------------- Elliptio            
        |  |                                            
        +--+  +-------------------- Eurynia             
           |  |                                         
           |  |  +----------------- Parvaspina          
           +--+  |                                      
              |  |              +-- Hemistena           
              |  +--------------+                       
              +--+              +-- Plethobasus         
                 |                                      
                 |  +-------------- Pleuronaia          
                 |  |                                   
                 |  |           +-- Pleurobema_cordatum 
                 +--+  +--------+                       
                    |  |        +-- Fusconaia           
                    |  |                                
                    +--+        +-- Pleurobema_stabile  
                       |  +-----+                       
                       |  |     +-- Pleurobema_sintoxia 
                       +--+                             
                          |  +----- Pleurobema_decisum  
                          +--+                          
                             |  +-- Pleurobema_clava    
                             +--+                       
                                +-- Pleurobema_pyriforme

Wu et al., 2024 [Publ 4388], fig. 6

iTtTbiriSoTroTroSiD
1 1 0 1 53 9 3 --
  +-------- Quadrulini  
--+                     
  |  +----- Pleurobemini
  +--+                  
     |  +-- Popenaias **   
     +--+               
        +-- Lampsilini  

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

iTtTbiriSoTroTroSiD
1 1 0 1 95 16 4 --
  +----------- Quadrulini  
--+                        
  |  +-------- Pleurobemini
  +--+                     
     |  +----- Amblemini   
     +--+                  
        |  +-- Popenaias **   
        +--+               
           +-- Lampsilini  

Chapman et al., 2008 [Publ 2744], fig. 2

iTtTbiriSoTroTroSiD
1 1 0 1 20 19 4 --
  +-------------- Quadrulini  
--+                           
  |  +----------- Pleurobemini
  +--+                        
     |  +-------- Amblema     
     +--+                     
        |  +----- Plectomerus 
        +--+                  
           |  +-- Popenaias **   
           +--+               
              +-- Lampsilini  

Mejia-Trujillo & Smith, 2022 [Publ 4274], fig. 2-F

iTtTbiriSoTroTroSiD
1 1 0 1 14 14 4 --
     +----------- Toxolasma            
  +--+                                 
  |  |  +-------- Popenaias **            
  |  +--+                              
  |     |  +----- Amblemini            
  |     +--+                           
--+        |  +-- Quadrulini           
  |        +--+                        
  |           +-- Pleurobemini         
  |                                    
  |  +----------- Potamilus            
  |  |                                 
  +--+        +-- Lampsilis_cardium    
     |  +-----+                        
     |  |     +-- Lampsilis_ornata     
     +--+                              
        |  +----- Venustaconcha        
        +--+                           
           |  +-- Lampsilis_siliquoidea
           +--+                        
              +-- Lampsilis_powellii   

Teiga-Teixeira et al., 2020 [Publ 4173], fig. 1

iTtTbiriSoTroTroSiD
1 1 0 1 18 13 4 --
  +----------- Quadrulini  
--+                        
  |  +-------- Pleurobemini
  +--+                     
     |  +----- Amblemini   
     +--+                  
        |  +-- Popenaias **   
        +--+               
           +-- Lampsilini  

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

iTtTbiriSoTroTroSiD
1 1 0 1 55 53 3 --
  +-------- Lampsilini  
--+                     
  |  +----- Pleurobemini
  +--+                  
     |  +-- Amblemini   
     +--+               
        +-- Popenaias **   

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

iTtTbiriSoTroTroSiD
1 1 0 1 73 14 4 --
  +----------- Quadrulini  
--+                        
  |  +-------- Pleurobemini
  +--+                     
     |  +----- Amblemini   
     +--+                  
        |  +-- Popenaias **   
        +--+               
           +-- Lampsilini  

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

iTtTbiriSoTroTroSiD
1 1 0 1 52 11 4 --
  +----------- Quadrulini  
--+                        
  |  +-------- Pleurobemini
  +--+                     
     |  +----- Amblemini   
     +--+                  
        |  +-- Popenaias **   
        +--+               
           +-- Lampsilini  

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

iTtTbiriSoTroTroSiD
1 1 0 1 101 89 4 --
  +-------------------------- Quadrulini                    
  |                                                         
  |  +----------------------- Pleurobemini                  
--+  |                                                      
  |  |                 +----- Popenaias **                     
  |  |  +--------------+                                    
  |  |  |              |  +-- Amblema                       
  +--+  |              +--+                                 
     |  |                 +-- Reginaia                      
     |  |                                                   
     |  |                 +-- Plectomerus                   
     |  |  +--------------+                                 
     +--+  |              +-- Toxolasma                     
        |  |                                                
        |  |           +----- Obliquaria                    
        |  |  +--------+                                    
        |  |  |        |  +-- Cyrtonaias                    
        |  |  |        +--+                                 
        |  |  |           +-- Glebula                       
        |  |  |                                             
        +--+  |  +----------- Sagittunio                    
           |  |  |                                          
           |  |  +----------- Leaunio                       
           |  |  |                                          
           |  |  +----------- Potamilus                     
           |  |  |                                          
           |  |  +----------- Hamiota                       
           |  |  |                                          
           |  |  |        +-- Ellipsaria                    
           +--+  +--------+                                 
              |  |        +-- Truncilla                     
              |  |                                          
              |  |     +----- Lampsilis_teres               
              |  +-----+                                    
              |  |     |  +-- Ortmanniana_ligamentina       
              |  |     +--+                                 
              |  |        +-- Lampsilis_siliquoidea         
              |  |                                          
              |  |     +----- Villosa                       
              |  +-----+                                    
              |  |     |  +-- Ligumia                       
              |  |     +--+                                 
              |  |        +-- Cambarunio                    
              |  |                                          
              +--+  +-------- Ortmanniana_pectorosa         
                 +--+                                       
                 |  |  +----- Lampsilis_ornata              
                 |  +--+                                    
                 |     |  +-- Lampsilis_cardium             
                 |     +--+                                 
                 |        +-- Lampsilis_ovata               
                 |                                          
                 |  +-------- Obovaria_olivaria             
                 |  |                                       
                 |  +-------- Venustaconcha_ellipsiformis__2
                 +--+                                       
                 |  +-------- Epioblasma                    
                 |  |                                       
                 |  |  +----- Obovaria_unicolor             
                 |  +--+                                    
                 |     |  +-- Obovaria_arkansasensis        
                 |     +--+                                 
                 |        +-- Obovaria_subrotunda           
                 |                                          
                 |        +-- Ptychobranchus                
                 |  +-----+                                 
                 |  |     +-- Venustaconcha_ellipsiformis__1
                 |  |                                       
                 +--+  +----- Medionidus_conradicus         
                    |  |                                    
                    |  |  +-- Lemiox                        
                    +--+--+                                 
                       |  +-- Medionidus_acutissimus        
                       |                                    
                       |  +-- Dromus                        
                       +--+                                 
                          +-- Cyprogenia                    

Campbell & Lydeard, 2012 [Publ 3308], fig. 1

iTtTbiriSoTroTroSiD
1 1 0 1 41 41 4 --
  +-------------------- Quadrulini  
  |                                 
--+  +----------------- Pleurobemini
  |  |                              
  |  |              +-- Popenaias **   
  +--+  +-----------+               
     |  |           +-- Amblema     
     |  |                           
     +--+           +-- Cyrtonaias  
        |  +--------+               
        |  |        +-- Reginaia    
        +--+                        
           |  +-------- Plectomerus 
           +--+                     
              |  +----- Lemiox      
              +--+                  
                 |  +-- Lampsilis   
                 +--+               
                    +-- Obovaria    

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

iTtTbiriSoTroTroSiD
1 1 0 1 73 14 4 --
  +----------- Quadrulini  
--+                        
  |  +-------- Pleurobemini
  +--+                     
     |  +----- Amblemini   
     +--+                  
        |  +-- Popenaias **   
        +--+               
           +-- Lampsilini  

Campbell & Lydeard, 2012 [Publ 3309], fig. 3

iTtTbiriSoTroTroSiD
1 1 0 1 72 72 4 --
  +----------------------------------- Quadrulini            
  |                                                          
--+  +-------------------------------- Pleurobemini          
  |  |                                                       
  |  |                             +-- Amblema               
  +--+  +--------------------------+                         
     |  |                          +-- Reginaia              
     |  |                                                    
     +--+  +-------------------------- Popenaias **             
        |  |                                                 
        |  |                       +-- Glebula               
        +--+  +--------------------+                         
           |  |                    +-- Paetulunio            
           |  |                                              
           +--+                    +-- Toxolasma             
              |  +-----------------+                         
              |  |                 +-- Plectomerus           
              |  |                                           
              +--+  +----------------- Obliquaria            
                 |  |                                        
                 |  |           +----- Potamilus             
                 +--+  +--------+                            
                    |  |        |  +-- Dromus                
                    |  |        +--+                         
                    +--+           +-- Lemiox                
                       |                                     
                       |  +----------- Lampsilis_ovata       
                       |  |                                  
                       +--+  +-------- Lampsilis_virescens   
                          |  |                               
                          +--+     +-- Epioblasma            
                             |  +--+                         
                             |  |  +-- Obovaria_arkansasensis
                             +--+                            
                                |  +-- Obovaria_olivaria     
                                +--+                         
                                   +-- Venustaconcha         

Burlakova et al., 2012 [Publ 3486], fig. 1

iTtTbiriSoTroTroSiD
1 1 0 1 40 40 3 --
  +----------- Amblema     
  |                        
--+        +-- Lampsilis   
  |  +-----+               
  |  |     +-- Plectomerus 
  +--+                     
     |  +----- Popenaias **   
     +--+                  
        |  +-- Cyrtonaias  
        +--+               
           +-- Pleurobemini

Chapman et al., 2008 [Publ 2667], fig. 1

iTtTbiriSoTroTroSiD
1 1 0 1 20 19 4 --
  +-------------- Quadrulini  
--+                           
  |  +----------- Pleurobemini
  +--+                        
     |  +-------- Amblema     
     +--+                     
        |  +----- Plectomerus 
        +--+                  
           |  +-- Popenaias **   
           +--+               
              +-- Lampsilini  

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

iTtTbiriSoTroTroSiD
1 1 0 1 87 15 4 --
  +----------- Quadrulini  
--+                        
  |  +-------- Pleurobemini
  +--+                     
     |  +----- Amblemini   
     +--+                  
        |  +-- Popenaias **   
        +--+               
           +-- Lampsilini  

Campbell & Lydeard, 2012 [Publ 3308], fig. 4

iTtTbiriSoTroTroSiD
1 1 0 1 41 41 4 --
  +----------------- Quadrulini  
  |                              
--+  +-------------- Pleurobemini
  |  |                           
  |  |           +-- Popenaias **   
  +--+  +--------+               
     |  |        +-- Amblema     
     |  |                        
     +--+  +-------- Plectomerus 
        |  |                     
        |  |     +-- Cyrtonaias  
        +--+-----+               
           |     +-- Reginaia    
           |                     
           |  +----- Lemiox      
           +--+                  
              |  +-- Lampsilis   
              +--+               
                 +-- Obovaria    

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

iTtTbiriSoTroTroSiD
1 1 0 1 103 81 4 --
  +-------- Reginaia           
  |                            
  +-------- Amblema            
  |                            
  |     +-- Quadrulini         
  +-----+                      
  |     +-- Pleurobemini       
--+                            
  |  +----- Popenaias **          
  |  |                         
  |  |  +-- Dromus             
  |  |  |                      
  |  |  +-- Epioblasma         
  |  |  |                      
  +--+  +-- Glebula            
     |  |                      
     |  +-- Lampsilis_ovata    
     |  |                      
     |  +-- Lampsilis_virescens
     |  |                      
     |  +-- Lemiox             
     +--+                      
        +-- Obliquaria         
        |                      
        +-- Obovaria_olivaria  
        |                      
        +-- Obovaria_unicolor  
        |                      
        +-- Plectomerus        
        |                      
        +-- Potamilus_alatus   
        |                      
        +-- Potamilus_capax    

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

iTtTbiriSoTroTroSiD
1 1 0 1 73 14 4 --
  +----------- Quadrulini  
--+                        
  |  +-------- Pleurobemini
  +--+                     
     |  +----- Amblemini   
     +--+                  
        |  +-- Popenaias **   
        +--+               
           +-- Lampsilini  

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

iTtTbiriSoTroTroSiD
1 1 0 1 91 16 4 --
  +----------- Quadrulini  
--+                        
  |  +-------- Pleurobemini
  +--+                     
     |  +----- Amblemini   
     +--+                  
        |  +-- Popenaias **   
        +--+               
           +-- Lampsilini  

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

iTtTbiriSoTroTroSiD
1 1 0 1 68 11 4 --
  +----------- Quadrulini  
--+                        
  |  +-------- Pleurobemini
  +--+                     
     |  +----- Amblemini   
     +--+                  
        |  +-- Popenaias **   
        +--+               
           +-- Lampsilini  

Burlakova et al., 2019 [Publ 3899], fig. 1

iTtTbiriSoTroTroSiD
1 1 0 1 32 32 4 --
  +-------------------------- Quadrulini           
  |                                                
  |  +----------------------- Plectomerus          
--+  |                                             
  |  |  +-------------------- Popenaias **            
  |  |  |                                          
  |  |  +-------------------- Pleurobemini         
  +--+  |                                          
     |  |                 +-- Cyrtonaias           
     |  |              +--+                        
     |  |              |  +-- Glebula              
     |  +--------------+                           
     |  |              |  +-- Reginaia             
     +--+              +--+                        
        |                 +-- Obliquaria           
        |                                          
        |  +----------------- Toxolasma            
        |  |                                       
        |  |  +-------------- Potamilus            
        |  |  |                                    
        |  |  |           +-- Ellipsaria           
        |  |  +-----------+                        
        +--+  |           +-- Truncilla            
           |  |                                    
           |  |        +----- Medionidus           
           |  +--------+                           
           |  |        |  +-- Lemiox               
           |  |        +--+                        
           +--+           +-- Dromus               
              |                                    
              |  +----------- Cambarunio           
              |  |                                 
              |  +----------- Leaunio              
              |  |                                 
              |  +----------- Villosa              
              |  |                                 
              |  |        +-- Sagittunio           
              |  +--------+                        
              +--+        +-- Lampsilis_ovata      
                 |                                 
                 |     +----- Venustaconcha        
                 +-----+                           
                 |     |  +-- Epioblasma           
                 |     +--+                        
                 |        +-- Obovaria             
                 |                                 
                 |  +-------- Lampsilis_teres      
                 +--+                              
                    |  +----- Lampsilis_siliquoidea
                    +--+                           
                       |  +-- Lampsilis_hydiana    
                       +--+                        
                          +-- Lampsilis_straminea  

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

iTtTbiriSoTroTroSiD
1 1 0 1 95 16 4 --
  +----------- Quadrulini  
--+                        
  |  +-------- Pleurobemini
  +--+                     
     |  +----- Amblemini   
     +--+                  
        |  +-- Popenaias **   
        +--+               
           +-- Lampsilini  

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

iTtTbiriSoTroTroSiD
1 1 0 1 52 14 4 --
  +----------- Quadrulini  
--+                        
  |  +-------- Pleurobemini
  +--+                     
     |  +----- Amblemini   
     +--+                  
        |  +-- Popenaias **   
        +--+               
           +-- Lampsilini  

Smith et al., 2019 [Publ 3951], fig. 2

iTtTbiriSoTroTroSiD
1 1 0 1 40 40 3 --
  +-------------------------------------- Quadrulini             
  |                                                              
  |                                   +-- Amblema                
--+  +--------------------------------+                          
  |  |                                +-- Reginaia               
  |  |                                                           
  +--+  +-------------------------------- Plectomerus            
     |  |                                                        
     |  |  +----------------------------- Toxolasma              
     +--+  |                                                     
        |  |                       +----- Popenaias **              
        |  |  +--------------------+                             
        +--+  |                    |  +-- Glebula                
           |  |                    +--+                          
           |  |                       +-- Cyrtonaias             
           |  |                                                  
           +--+  +----------------------- Obliquaria             
              |  |                                               
              |  |                    +-- Medionidus             
              |  |                 +--+                          
              |  |                 |  +-- Lemiox                 
              +--+  +--------------+                             
                 |  |              |  +-- Cyprogenia             
                 |  |              +--+                          
                 |  |                 +-- Ptychobranchus         
                 |  |                                            
                 +--+           +-------- Potamilus              
                    |  +--------+                                
                    |  |        |  +----- Atlanticoncha          
                    |  |        +--+                             
                    |  |           |  +-- Ellipsaria             
                    |  |           +--+                          
                    +--+              +-- Truncilla              
                       |                                         
                       |              +-- Hamiota                
                       |  +-----------+                          
                       |  |           +-- Villosa                
                       |  |                                      
                       +--+  +----------- Ligumia                
                          |  |                                   
                          |  |     +----- Venustaconcha          
                          +--+  +--+                             
                             |  |  |  +-- Obovaria               
                             |  |  +--+                          
                             +--+     +-- Epioblasma             
                                |                                
                                |  +----- Ortmanniana_pectorosa  
                                +--+                             
                                   |  +-- Ortmanniana_ligamentina
                                   +--+                          
                                      +-- Lampsilis              

Neemuchwala et al., 2023 [Publ 4292], fig. 2

iTtTbiriSoTroTroSiD
1 1 0 1 26 25 4 --
  +----------- Quadrulini  
--+                        
  |  +-------- Pleurobemini
  +--+                     
     |  +----- Amblemini   
     +--+                  
        |  +-- Lampsilini  
        +--+               
           +-- Popenaias **   

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

iTtTbiriSoTroTroSiD
1 1 0 1 56 54 3 --
  +----- Pleurobemini
  |                  
--+  +-- Amblemini   
  |  |               
  +--+-- Popenaias **   
     |               
     +-- Lampsilini  

Campbell & Lydeard, 2012 [Publ 3309], fig. 1-2

iTtTbiriSoTroTroSiD
1 1 0 1 72 72 4 --
  +-------------- Quadrulini  
  |                           
--+  +----------- Pleurobemini
  |  |                        
  +--+        +-- Plectomerus 
     |  +-----+               
     |  |     +-- Reginaia    
     +--+                     
        |  +----- Lampsilini  
        +--+                  
           |  +-- Popenaias **   
           +--+               
              +-- Amblema     
 
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