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Page last updated
Thu 17 July 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!


Publication Walker et al. (2006): cladograms
     publication summary | cladograms

Complete Citation

Walker, J.M., J.P. Curole, D.E. Wade, E.G. Chapman, A.E. Bogan & W.R. Hoeh. 2006. Taxonomic distribution and phylogenetic utility of gender-associated mitochondrial genomes in the Unionoida (Bivalvia). Malacologia 48(1-2): 265-282. Available electronically.

Cladogram Figures

(click the figure number to see the cladogram)

Cladogram Figure 2
  +----------------------------- Neotrigonia_margaritacea  
  |                                                        
--+  +-------------------------- Hyridella                 
  |  |                                                     
  |  |                    +----- Anodonta                  
  +--+  +-----------------+                                
     |  |                 |  +-- Pyganodon_fragilis        
     |  |                 +--+                             
     |  |                    +-- Pyganodon_grandis         
     +--+                                                  
        |  +-------------------- Pronodularia_japanensis   
        |  |                                               
        |  |                 +-- Gonidea_angulata          
        +--+  +--------------+                             
           |  |              +-- Pseudodon_vondembuschianus
           |  |                                            
           +--+              +-- Fusconaia_flava           
              |  +-----------+                             
              |  |           +-- Cumberlandia_monodonta    
              +--+                                         
                 |  +----------- Cyrtonaias_tampicoensis   
                 +--+                                      
                    |  +-------- Potamilus_purpuratus      
                    +--+                                   
                       |  +----- Ligumia_recta             
                       +--+                                
                          |  +-- Ortmanniana_ligamentina   
                          +--+                             
                             +-- Lampsilis_teres           
Cladogram Figure 3
  +----------------------------------- Neotrigonia_margaritacea  
  |                                                              
--+  +-------------------------------- Hyridella                 
  |  |                                                           
  +--+  +----------------------------- Cumberlandia_monodonta    
     |  |                                                        
     +--+  +-------------------------- Pseudodon_vondembuschianus
        |  |                                                     
        +--+  +----------------------- Gonidea_angulata          
           |  |                                                  
           +--+  +-------------------- Inversidens               
              |  |                                               
              |  |              +----- Anodonta                  
              +--+  +-----------+                                
                 |  |           |  +-- Pyganodon_fragilis        
                 |  |           +--+                             
                 +--+              +-- Pyganodon_grandis         
                    |                                            
                    |  +-------------- Fusconaia_flava           
                    +--+                                         
                       |  +----------- Potamilus_purpuratus      
                       +--+                                      
                          |  +-------- Cyrtonaias_tampicoensis   
                          +--+                                   
                             |  +----- Ligumia_recta             
                             +--+                                
                                |  +-- Ortmanniana_ligamentina   
                                +--+                             
                                   +-- Lampsilis_teres           
Cladogram Figure 4
  +----------------------------------- Neotrigonia_margaritacea  
  |                                                              
--+  +-------------------------------- Hyridella                 
  |  |                                                           
  +--+  +----------------------------- Cumberlandia_monodonta    
     |  |                                                        
     +--+  +-------------------------- Pseudodon_vondembuschianus
        |  |                                                     
        +--+  +----------------------- Gonidea_angulata          
           |  |                                                  
           +--+  +-------------------- Inversidens               
              |  |                                               
              |  |              +----- Anodonta                  
              +--+  +-----------+                                
                 |  |           |  +-- Pyganodon_fragilis        
                 |  |           +--+                             
                 +--+              +-- Pyganodon_grandis         
                    |                                            
                    |  +-------------- Fusconaia_flava           
                    +--+                                         
                       |  +----------- Cyrtonaias_tampicoensis   
                       +--+                                      
                          |  +-------- Potamilus_purpuratus      
                          +--+                                   
                             |  +----- Ligumia_recta             
                             +--+                                
                                |  +-- Ortmanniana_ligamentina   
                                +--+                             
                                   +-- Lampsilis_teres           
Cladogram Figure 6
  +----------------------------- Neotrigonia_margaritacea   
  |                                                         
  |           +----------------- Castalia_stevensi          
  |           |                                             
  |           +----------------- Diplodon_gratus            
  |  +--------+                                             
  |  |        |  +-------------- Hyridella_depressa         
  |  |        |  |                                          
  |  |        |  +-------------- Hyridella_australis        
  |  |        +--+                                          
  |  |           |  +----------- Echyridella_menziesii      
--+  |           |  |                                       
  |  |           |  |        +-- Velesunio_ambiguus         
  |  |           +--+  +-----+                              
  |  |              |  |     +-- Velesunio__3               
  |  |              |  |                                    
  |  |              +--+  +----- Velesunio__2               
  |  |                 |  |                                 
  |  |                 |  |  +-- Alathyria_jacksoni         
  |  |                 +--+--+                              
  |  |                    |  +-- Velesunio__1               
  |  |                    |                                 
  +--+                    |  +-- Velesunio_angasi           
     |                    +--+                              
     |                       +-- Lortiella_rugata           
     |                                                      
     |                       +-- Mutela_dubia               
     |        +--------------+                              
     |        |              +-- Mutela_rostrata            
     |  +-----+                                             
     |  |     |  +-------------- Etheria_elliptica          
     |  |     |  |                                          
     |  |     +--+  +----------- Chambardia_rubens          
     |  |        |  |                                       
     |  |        +--+  +-------- Mulleria_rivoli            
     |  |           |  |                                    
     |  |           +--+     +-- Anodontites_guanarensis    
     |  |              |  +--+                              
     |  |              |  |  +-- Anodontites_trigona        
     +--+              +--+                                 
        |                 |  +-- Tamsiella_tamsiana         
        |                 +--+                              
        |                    +-- Monocondylaea_minuana      
        |                                                   
        |                    +-- Pyganodon_fragilis         
        |  +-----------------+                              
        |  |                 +-- Pyganodon_grandis          
        |  |                                                
        |  |        +----------- Cumberlandia_monodonta     
        |  |        |                                       
        +--+  +-----+  +-------- Pseudunio_auricularius     
           |  |     |  |                                    
           |  |     +--+     +-- Margaritifera_margaritifera
           |  |        |  +--+                              
           |  |        |  |  +-- Margaritifera_dahurica     
           |  |        +--+                                 
           +--+           |  +-- Margaritifera_falcata      
              |           +--+                              
              |              +-- Margaritifera_middendorffi 
              |                                             
              |              +-- Gonidea_angulata           
              |  +-----------+                              
              |  |           +-- Sundadontina_tumida        
              +--+                                          
                 |  +----------- Cyrtonaias_tampicoensis    
                 |  |                                       
                 +--+----------- Fusconaia_flava            
                    |                                       
                    |  +-------- Potamilus_purpuratus       
                    +--+                                    
                       |  +----- Lampsilis_teres            
                       +--+                                 
                          |  +-- Ligumia_recta              
                          +--+                              
                             +-- Ortmanniana_ligamentina    
Cladogram Figure 6-M
  +-------------------------- Echyridella_menziesii      
  |                                                      
  |                    +----- Cumberlandia_monodonta     
  |                    |                                 
--+  +-----------------+  +-- Margaritifera_margaritifera
  |  |                 |  |                              
  |  |                 +--+-- Margaritifera_dahurica__1  
  |  |                    |                              
  |  |                    +-- Margaritifera_dahurica__2  
  +--+                                                   
     |                    +-- Gonidea_angulata           
     |  +-----------------+                              
     |  |                 +-- Sundadontina_tumida        
     |  |                                                
     +--+                 +-- Pyganodon_fragilis         
        |  +--------------+                              
        |  |              +-- Pyganodon_grandis          
        +--+                                             
           |  +-------------- Fusconaia_flava            
           +--+                                          
              |  +----------- Potamilus_purpuratus       
              +--+                                       
                 |  +-------- Cyrtonaias_tampicoensis    
                 +--+                                    
                    |  +----- Ligumia_recta              
                    +--+                                 
                       |  +-- Lampsilis_teres            
                       +--+                              
                          +-- Ortmanniana_ligamentina    
 
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