Bivalvia | Unionida | Unionoidea | Unionidae | Gonideinae | Gonideini

genus Ptychorhynchus Simpson, 1900: cladomics

4 Recent valid species (4 total species)

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 = 4 (4 total)
analyzed in 62 cladograms in 35 publications
maximum number of terminals in an analysis = 1 (mean = 1, median = 1)

Basic Monophyly

number of cladograms that test basic monophyly (i.e., more than 1 included species) = 0
maximum number of included terminals = , (mean = median = )
proportion of cladograms that support basic monophyly = 0

Cladograms

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

** Top Monophyly Cladogram ** ** Top Sister-Group Cladogram **

iTtTbiriSoTroTroSiD
1 1 0 1 631 20 12 -- 
  +----------------- Parvasolenaia          
  |                                         
--+  +-------------- Pseudopostolata        
  |  |                                      
  +--+  +----------- Koreosolenaia          
     |  |                                   
     +--+        +-- Cosmopseudodon         
        |  +-----+                          
        |  |     +-- Guiunio                
        +--+                                
           |  +----- Ptychorhynchus_pfisteri **
           +--+                             
              |  +-- Obovalis               
              +--+                          
                 +-- Postolata

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

iTtTbiriSoTroTroSiD
1 1 0 1 95 12 7 -- 
  +-------------------- Inversidens            
--+                                            
  |  +----------------- Sinosolenaia           
  +--+                                         
     |  +-------------- Parvasolenaia          
     +--+                                      
        |  +----------- Pseudopostolata        
        +--+                                   
           |  +-------- Koreosolenaia          
           +--+                                
              |  +----- Ptychorhynchus_pfisteri **
              +--+                             
                 |  +-- Cosmopseudodon         
                 +--+                          
                    +-- Postolata

Dai et al., 2023 [Publ 4285], fig. 3-BI

iTtTbiriSoTroTroSiD
1 1 0 1 44 13 9 -- 
  +-------------- Sinosolenaia           
  |                                      
  |        +----- Gonidea                
--+  +-----+                             
  |  |     |  +-- Leguminaia             
  |  |     +--+                          
  |  |        +-- Microcondylaea         
  +--+                                   
     |        +-- Koreosolenaia          
     |  +-----+                          
     |  |     +-- Parvasolenaia          
     +--+                                
        |  +----- Postolata              
        +--+                             
           |  +-- Ptychorhynchus_pfisteri **
           +--+                          
              +-- Obovalis

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

iTtTbiriSoTroTroSiD
1 1 0 1 73 4 3 -- 
     +-- Parvasolenaia          
  +--+                          
  |  +-- Ptychorhynchus_pfisteri **
--+                             
  |  +-- Microcondylaea         
  +--+                          
     +-- Sinosolenaia

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

iTtTbiriSoTroTroSiD
1 1 0 1 45 2 1 -- 
  +-- Ptychorhynchus_pfisteri **
--+                          
  +-- Sinosolenaia

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

iTtTbiriSoTroTroSiD
1 1 0 1 68 4 3 -- 
     +-- Parvasolenaia          
  +--+                          
  |  +-- Ptychorhynchus_pfisteri **
--+                             
  |  +-- Microcondylaea         
  +--+                          
     +-- Sinosolenaia

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

iTtTbiriSoTroTroSiD
1 1 0 1 121 11 8 -- 
     +-------- Sinosolenaia           
  +--+                                
  |  |  +----- Gonidea                
  |  +--+                             
  |     |  +-- Leguminaia             
--+     +--+                          
  |        +-- Microcondylaea         
  |                                   
  |  +-------- Inversidens            
  |  |                                
  +--+     +-- Obovalis               
     |  +--+                          
     |  |  +-- Ptychorhynchus_pfisteri **
     +--+                             
        |  +-- Parvasolenaia          
        +--+                          
           +-- Koreosolenaia

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

iTtTbiriSoTroTroSiD
1 1 0 1 91 6 4 -- 
  +-------- Inversidens            
  |                                
--+     +-- Parvasolenaia          
  |  +--+                          
  |  |  +-- Ptychorhynchus_pfisteri **
  +--+                             
     |  +-- Microcondylaea         
     +--+                          
        +-- Sinosolenaia

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

iTtTbiriSoTroTroSiD
1 1 0 1 140 10 7 -- 
  +-------------------- Inversidens            
--+                                            
  |  +----------------- Microcondylaea         
  +--+                                         
     |  +-------------- Sinosolenaia           
     +--+                                      
        |  +----------- Koreosolenaia          
        +--+                                   
           |  +-------- Parvasolenaia          
           +--+                                
              |  +----- Ptychorhynchus_pfisteri **
              +--+                             
                 |  +-- Cosmopseudodon         
                 +--+                          
                    +-- Postolata

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

iTtTbiriSoTroTroSiD
1 1 0 1 95 5 3 -- 
  +-------- Microcondylaea         
--+                                
  |  +----- Sinosolenaia           
  +--+                             
     |  +-- Parvasolenaia          
     +--+                          
        +-- Ptychorhynchus_pfisteri **

Liu et al., 2024 [Publ 4380], fig. 5

iTtTbiriSoTroTroSiD
1 1 0 1 35 8 7 -- 
  +-------------- Sinosolenaia           
  |                                      
  |           +-- Gonidea                
--+  +--------+                          
  |  |        +-- Microcondylaea         
  |  |                                   
  +--+        +-- Koreosolenaia          
     |  +-----+                          
     |  |     +-- Parvasolenaia          
     +--+                                
        |  +----- Postolata              
        +--+                             
           |  +-- Obovalis               
           +--+                          
              +-- Ptychorhynchus_pfisteri **

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

iTtTbiriSoTroTroSiD
1 1 0 1 43 3 2 -- 
  +----- Ptychorhynchus_pfisteri **
--+                             
  |  +-- Microcondylaea         
  +--+                          
     +-- Sinosolenaia

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

iTtTbiriSoTroTroSiD
1 1 0 1 37 2 1 -- 
  +-- Ptychorhynchus_pfisteri **
--+                          
  +-- Sinosolenaia

Huang et al., 2002 [Publ 2657], fig. 1

iTtTbiriSoTroTroSiD
1 1 0 1 33 1 1 -- 
-- Ptychorhynchus_pfisteri **

Bolotov et al., 2020 [Publ 4100], fig. S1

iTtTbiriSoTroTroSiD
1 1 0 1 110 8 5 -- 
  +-- Sinosolenaia_iridinea    
  |                            
  +-- Sinosolenaia_recognita__1
  |                            
  +-- Sinosolenaia_carinata    
  |                            
  +-- Leguminaia               
  |                            
  +-- Microcondylaea           
--+                            
  +-- Gonidea                  
  |                            
  +-- Ptychorhynchus_pfisteri **  
  |                            
  +-- Parvasolenaia            
  |                            
  +-- Sinosolenaia_recognita__2
  |                            
  +-- Sinosolenaia_oleivora

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

iTtTbiriSoTroTroSiD
1 1 0 1 30 2 1 -- 
  +-- Ptychorhynchus_pfisteri **
--+                          
  +-- Sinosolenaia

Wu et al., 2024 [Publ 4388], fig. 4

iTtTbiriSoTroTroSiD
1 1 0 1 8 3 3 -- 
     +-- Cosmopseudodon         
  +--+                          
  |  +-- Ptychorhynchus_pfisteri **
--+                             
  |  +-- Postolata              
  +--+                          
     +-- Obovalis

Huang et al., 2019 [Publ 3843], fig. 1

iTtTbiriSoTroTroSiD
1 1 0 1 44 6 2 -- 
  +----- Parvasolenaia          
--+                             
  |  +-- Ptychorhynchus_pfisteri **
  +--+                          
     +-- Sinosolenaia

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

iTtTbiriSoTroTroSiD
1 1 0 1 73 4 3 -- 
     +-- Ptychorhynchus_pfisteri **
  +--+                          
  |  +-- Parvasolenaia          
--+                             
  |  +-- Microcondylaea         
  +--+                          
     +-- Sinosolenaia

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

iTtTbiriSoTroTroSiD
1 1 0 1 95 5 3 -- 
     +-- Ptychorhynchus_pfisteri **
  +--+                          
  |  +-- Microcondylaea         
--+                             
  |  +-- Parvasolenaia          
  +--+                          
     +-- Sinosolenaia

Huang et al., 2002 [Publ 2657], fig. 2

iTtTbiriSoTroTroSiD
1 1 0 1 33 1 1 -- 
-- Ptychorhynchus_pfisteri **

Wu et al., 2024 [Publ 4350], fig. 5b

iTtTbiriSoTroTroSiD
1 1 0 1 35 8 7 -- 
  +-------------- Sinosolenaia           
  |                                      
--+           +-- Gonidea                
  |  +--------+                          
  |  |        +-- Microcondylaea         
  +--+                                   
     |  +-------- Koreosolenaia          
     +--+                                
        |  +----- Parvasolenaia          
        +--+                             
           |  +-- Postolata              
           +--+                          
              +-- Ptychorhynchus_pfisteri **

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

iTtTbiriSoTroTroSiD
1 1 0 1 39 2 1 -- 
  +----- Sinosolenaia_oleivora  
--+                             
  |  +-- Ptychorhynchus_pfisteri **
  +--+                          
     +-- Sinosolenaia_carinata

Sano et al., 2020 [Publ 4138], fig. 1

iTtTbiriSoTroTroSiD
1 1 0 1 33 3 3 -- 
  +-------- Sinosolenaia           
  |                                
--+  +----- Inversidens            
  |  |                             
  +--+  +-- Obovalis_omiensis__1   
     |  |                          
     +--+-- Obovalis_omiensis__2   
        |                          
        +-- Ptychorhynchus_pfisteri **

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

iTtTbiriSoTroTroSiD
1 1 0 1 199 9 6 -- 
  +----------- Sinosolenaia           
  |                                   
  |     +----- Gonidea                
--+  +--+                             
  |  |  |  +-- Leguminaia             
  |  |  +--+                          
  +--+     +-- Microcondylaea         
     |                                
     |     +-- Ptychorhynchus_pfisteri **
     |     |                          
     +-----+-- Parvasolenaia          
           |                          
           +-- Koreosolenaia

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

iTtTbiriSoTroTroSiD
1 1 0 1 52 5 4 -- 
        +-- Microcondylaea         
  +-----+                          
  |     +-- Sinosolenaia           
--+                                
  |  +----- Parvasolenaia          
  +--+                             
     |  +-- Postolata              
     +--+                          
        +-- Ptychorhynchus_pfisteri **

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

iTtTbiriSoTroTroSiD
1 1 0 1 91 6 4 -- 
  +-------- Inversidens            
  |                                
--+     +-- Parvasolenaia          
  |  +--+                          
  |  |  +-- Ptychorhynchus_pfisteri **
  +--+                             
     |  +-- Microcondylaea         
     +--+                          
        +-- Sinosolenaia

Zhang et al., 2024 [Publ 4397], fig. 5

iTtTbiriSoTroTroSiD
1 1 0 1 26 10 7 -- 
  +----------------- Inversidens            
  |                                         
--+              +-- Microcondylaea         
  |  +-----------+                          
  |  |           +-- Sinosolenaia           
  +--+                                      
     |  +----------- Parvasolenaia          
     +--+                                   
        |  +-------- Koreosolenaia          
        +--+                                
           |  +----- Ptychorhynchus_pfisteri **
           +--+                             
              |  +-- Cosmopseudodon         
              +--+                          
                 +-- Postolata

Wu et al., 2024 [Publ 4350], fig. 5c

iTtTbiriSoTroTroSiD
1 1 0 1 35 8 7 -- 
  +-------------- Sinosolenaia           
  |                                      
--+  +----------- Gonidea                
  |  |                                   
  +--+----------- Microcondylaea         
     |                                   
     |  +-------- Koreosolenaia          
     +--+                                
        |  +----- Parvasolenaia          
        +--+                             
           |  +-- Postolata              
           +--+                          
              +-- Ptychorhynchus_pfisteri **

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

iTtTbiriSoTroTroSiD
1 1 0 1 48 2 1 -- 
  +-- Ptychorhynchus_pfisteri **
--+                          
  +-- Sinosolenaia

Konopleva et al., 2023 [Publ 4269], fig. S1_4

iTtTbiriSoTroTroSiD
1 1 0 1 55 5 5 -- 
  +----------- Sinosolenaia           
  |                                   
--+        +-- Ptychorhynchus_pfisteri **
  |  +-----+                          
  |  |     +-- Parvasolenaia          
  +--+                                
     |  +----- Gonidea                
     +--+                             
        |  +-- Microcondylaea         
        +--+                          
           +-- Leguminaia

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

iTtTbiriSoTroTroSiD
1 1 0 1 87 6 5 -- 
  +----------- Inversidens            
  |                                   
--+        +-- Microcondylaea         
  |  +-----+                          
  |  |     +-- Sinosolenaia           
  +--+                                
     |  +----- Parvasolenaia          
     +--+                             
        |  +-- Postolata              
        +--+                          
           +-- Ptychorhynchus_pfisteri **

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

iTtTbiriSoTroTroSiD
1 1 0 1 43 3 2 -- 
  +----- Ptychorhynchus_pfisteri **
--+                             
  |  +-- Microcondylaea         
  +--+                          
     +-- Sinosolenaia

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

iTtTbiriSoTroTroSiD
1 1 0 1 67 2 2 -- 
  +-- Ptychorhynchus_pfisteri **
--+                          
  +-- Obovalis

Sano et al., 2017 [Publ 3799], fig. 2

iTtTbiriSoTroTroSiD
1 1 0 1 32 3 3 -- 
  +-- Obovalis               
--+                          
  +-- Ptychorhynchus_pfisteri **

Dai et al., 2023 [Publ 4285], fig. 3-ML

iTtTbiriSoTroTroSiD
1 1 0 1 44 13 9 -- 
  +-------------- Sinosolenaia           
  |                                      
  |        +----- Gonidea                
--+  +-----+                             
  |  |     |  +-- Leguminaia             
  |  |     +--+                          
  |  |        +-- Microcondylaea         
  +--+                                   
     |        +-- Koreosolenaia          
     |  +-----+                          
     |  |     +-- Parvasolenaia          
     +--+                                
        |  +----- Postolata              
        +--+                             
           |  +-- Ptychorhynchus_pfisteri **
           +--+                          
              +-- Obovalis

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

iTtTbiriSoTroTroSiD
1 1 0 1 30 2 1 -- 
  +-- Ptychorhynchus_pfisteri **
--+                          
  +-- Sinosolenaia

Zhou et al., 2017 [Publ 3788], fig. 2

iTtTbiriSoTroTroSiD
1 1 0 1 15 2 1 -- 
  +-- Ptychorhynchus_pfisteri **
--+                          
  +-- Sinosolenaia

Wu et al., 2024 [Publ 4388], fig. 5

iTtTbiriSoTroTroSiD
1 1 0 1 35 8 8 -- 
  +-------------------- Sinosolenaia           
  |                                            
--+                 +-- Gonidea                
  |  +--------------+                          
  |  |              +-- Microcondylaea         
  +--+                                         
     |  +-------------- Koreosolenaia          
     +--+                                      
        |  +----------- Parvasolenaia          
        +--+                                   
           |  +-------- Postolata              
           +--+                                
              |  +----- Cosmopseudodon         
              +--+                             
                 |  +-- Ptychorhynchus_pfisteri **
                 +--+                          
                    +-- Obovalis

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

iTtTbiriSoTroTroSiD
1 1 0 1 55 3 2 -- 
  +----- Sinosolenaia           
--+                             
  |  +-- Ptychorhynchus_pfisteri **
  +--+                          
     +-- Parvasolenaia

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

iTtTbiriSoTroTroSiD
1 1 0 1 73 4 3 -- 
     +-- Parvasolenaia          
  +--+                          
  |  +-- Ptychorhynchus_pfisteri **
--+                             
  |  +-- Microcondylaea         
  +--+                          
     +-- Sinosolenaia

Bolotov et al., 2020 [Publ 4100], fig. 1

iTtTbiriSoTroTroSiD
1 1 0 1 116 8 5 -- 
-- Ptychorhynchus_pfisteri **

Dai et al., 2025 [Publ 4441], fig. 1

iTtTbiriSoTroTroSiD
1 1 0 1 46 15 11 -- 
  +-------------------- Sinosolenaia           
  |                                            
  |              +----- Gonidea                
--+  +-----------+                             
  |  |           |  +-- Leguminaia             
  |  |           +--+                          
  +--+              +-- Microcondylaea         
     |                                         
     |  +-------------- Pseudopostolata        
     |  |                                      
     +--+           +-- Koreosolenaia          
        |  +--------+                          
        |  |        +-- Parvasolenaia          
        +--+                                   
           |  +-------- Postolata              
           |  |                                
           +--+     +-- Guiunio                
              |  +--+                          
              |  |  +-- Cosmopseudodon         
              +--+                             
                 |  +-- Obovalis               
                 +--+                          
                    +-- Ptychorhynchus_pfisteri **

Wu et al., 2024 [Publ 4350], fig. 6-7

iTtTbiriSoTroTroSiD
1 1 0 1 35 8 7 -- 
  +----------------- Inversidens            
  |                                         
--+  +-------------- Sinosolenaia           
  |  |                                      
  +--+           +-- Gonidea                
     |  +--------+                          
     |  |        +-- Microcondylaea         
     +--+                                   
        |  +-------- Koreosolenaia          
        +--+                                
           |  +----- Parvasolenaia          
           +--+                             
              |  +-- Postolata              
              +--+                          
                 +-- Ptychorhynchus_pfisteri **

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

iTtTbiriSoTroTroSiD
1 1 0 1 47 3 2 -- 
  +----- Ptychorhynchus_pfisteri **
--+                             
  |  +-- Microcondylaea         
  +--+                          
     +-- Sinosolenaia

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

iTtTbiriSoTroTroSiD
1 1 0 1 90 7 6 -- 
        +----- Sinosolenaia           
  +-----+                             
  |     |  +-- Ptychorhynchus_pfisteri **
  |     +--+                          
--+        +-- Parvasolenaia          
  |                                   
  |  +-------- Inversidens            
  +--+                                
     |  +----- Gonidea                
     +--+                             
        |  +-- Microcondylaea         
        +--+                          
           +-- Leguminaia

Dai et al., 2024 [Publ 4389], fig. 3

iTtTbiriSoTroTroSiD
1 1 0 1 45 14 10 -- 
  +-------------------- Sinosolenaia           
  |                                            
  |              +----- Gonidea                
--+  +-----------+                             
  |  |           |  +-- Leguminaia             
  |  |           +--+                          
  +--+              +-- Microcondylaea         
     |                                         
     |  +-------------- Pseudopostolata        
     |  |                                      
     +--+           +-- Parvasolenaia          
        |  +--------+                          
        |  |        +-- Koreosolenaia          
        +--+                                   
           |  +-------- Postolata              
           +--+                                
              |  +----- Ptychorhynchus_pfisteri **
              +--+                             
                 |  +-- Cosmopseudodon         
                 +--+                          
                    +-- Obovalis

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

iTtTbiriSoTroTroSiD
1 1 0 1 197 8 6 -- 
  +----------- Sinosolenaia           
  |                                   
  |     +----- Gonidea                
--+  +--+                             
  |  |  |  +-- Leguminaia             
  |  |  +--+                          
  +--+     +-- Microcondylaea         
     |                                
     |  +----- Ptychorhynchus_pfisteri **
     +--+                             
        |  +-- Parvasolenaia          
        +--+                          
           +-- Koreosolenaia

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

iTtTbiriSoTroTroSiD
1 1 0 1 67 2 2 -- 
  +----- Inversidens            
--+                             
  |  +-- Obovalis               
  +--+                          
     +-- Ptychorhynchus_pfisteri **

Wu et al., 2021 [Publ 4215], fig. 3

iTtTbiriSoTroTroSiD
1 1 0 1 23 7 6 -- 
           +-- Ptychorhynchus_pfisteri **
  +--------+                          
  |        +-- Parvasolenaia          
--+                                   
  |  +-------- Inversidens            
  +--+                                
     |  +----- Gonidea                
     +--+                             
        |  +-- Microcondylaea         
        +--+                          
           +-- Leguminaia

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

iTtTbiriSoTroTroSiD
1 1 0 1 52 4 3 -- 
  +-------- Sinosolenaia_carinata  
  |                                
--+  +----- Gonidea                
  |  |                             
  +--+----- Sinosolenaia_oleivora  
     |                             
     |  +-- Parvasolenaia          
     +--+                          
        +-- Ptychorhynchus_pfisteri **

Wu et al., 2024 [Publ 4350], fig. 5a

iTtTbiriSoTroTroSiD
1 1 0 1 35 8 7 -- 
  +-------------- Sinosolenaia           
  |                                      
--+           +-- Gonidea                
  |  +--------+                          
  |  |        +-- Microcondylaea         
  +--+                                   
     |  +-------- Parvasolenaia          
     +--+                                
        |  +----- Koreosolenaia          
        +--+                             
           |  +-- Postolata              
           +--+                          
              +-- Ptychorhynchus_pfisteri **

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

iTtTbiriSoTroTroSiD
1 1 0 1 52 3 3 -- 
  +-------- Microcondylaea         
--+                                
  |  +----- Sinosolenaia           
  +--+                             
     |  +-- Ptychorhynchus_pfisteri **
     +--+                          
        +-- Parvasolenaia

Liu et al., 2024 [Publ 4380], fig. 4

iTtTbiriSoTroTroSiD
1 1 0 1 11 9 6 -- 
  +-------------- Sinosolenaia_carinata  
  |                                      
  |        +----- Inversidens            
--+  +-----+                             
  |  |     |  +-- Gonidea                
  |  |     +--+                          
  +--+        +-- Leguminaia             
     |                                   
     |  +-------- Sinosolenaia_oleivora  
     +--+                                
        |  +----- Postolata              
        +--+                             
           |  +-- Obovalis               
           +--+                          
              +-- Ptychorhynchus_pfisteri **

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

iTtTbiriSoTroTroSiD
1 1 0 1 67 2 2 -- 
  +-- Obovalis               
--+                          
  +-- Ptychorhynchus_pfisteri **

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

iTtTbiriSoTroTroSiD
1 1 0 1 52 7 5 -- 
           +-- Microcondylaea         
  +--------+                          
  |        +-- Sinosolenaia           
--+                                   
  |  +-------- Parvasolenaia          
  +--+                                
     |  +----- Ptychorhynchus_pfisteri **
     +--+                             
        |  +-- Cosmopseudodon         
        +--+                          
           +-- Postolata

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

iTtTbiriSoTroTroSiD
1 1 0 1 199 9 6 -- 
  +-------- Sinosolenaia_carinata  
  |                                
  |  +----- Gonidea                
  +--+                             
  |  |  +-- Leguminaia             
  |  +--+                          
  |     +-- Microcondylaea         
--+                                
  |  +----- Ptychorhynchus_pfisteri **
  +--+                             
  |  |  +-- Parvasolenaia          
  |  +--+                          
  |     +-- Koreosolenaia          
  |                                
  |  +----- Sinosolenaia_recognita 
  +--+                             
     |  +-- Sinosolenaia_iridinea  
     +--+                          
        +-- Sinosolenaia_oleivora

Chen et al., 2025 [Publ 4663], fig. 1

iTtTbiriSoTroTroSiD
1 1 0 1 47 16 12 -- 
  +----------------------- Sinosolenaia           
  |                                               
  |                 +----- Gonidea                
--+  +--------------+                             
  |  |              |  +-- Leguminaia             
  |  |              +--+                          
  +--+                 +-- Microcondylaea         
     |                                            
     |  +----------------- Pseudopostolata        
     |  |                                         
     +--+              +-- Koreosolenaia          
        |  +-----------+                          
        |  |           +-- Parvasolenaia          
        +--+                                      
           |  +----------- Postolata              
           |  |                                   
           +--+        +-- Guiunio                
              |  +-----+                          
              |  |     +-- Cosmopseudodon         
              +--+                                
                 |  +----- Obovalis               
                 +--+                             
                    |  +-- Tenuiunio              
                    +--+                          
                       +-- Ptychorhynchus_pfisteri **

Huang et al., 2019 [Publ 3843], fig. S1

iTtTbiriSoTroTroSiD
1 1 0 1 46 6 2 -- 
  +----- Parvasolenaia_rivularis   
--+                                
  |  +-- Parvasolenaia_triangularis
  +--+                             
     +-- Ptychorhynchus_pfisteri **

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

iTtTbiriSoTroTroSiD
1 1 0 1 53 3 2 -- 
  +----- Sinosolenaia           
--+                             
  |  +-- Parvasolenaia          
  +--+                          
     +-- Ptychorhynchus_pfisteri **

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

iTtTbiriSoTroTroSiD
1 1 0 1 90 7 6 -- 
        +----- Gonidea                
  +-----+                             
  |     |  +-- Leguminaia             
  |     +--+                          
--+        +-- Microcondylaea         
  |                                   
  |  +-------- Inversidens            
  +--+                                
     |  +----- Sinosolenaia           
     +--+                             
        |  +-- Parvasolenaia          
        +--+                          
           +-- Ptychorhynchus_pfisteri **

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

iTtTbiriSoTroTroSiD
1 1 0 1 85 4 3 -- 
     +-- Ptychorhynchus_pfisteri **
  +--+                          
  |  +-- Parvasolenaia          
--+                             
  |  +-- Microcondylaea         
  +--+                          
     +-- Sinosolenaia