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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!

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Publication Smith et al. (2020): cladograms
     publication summary | cladograms

Complete Citation

Smith, C.H., J.M. Pfeiffer & N.A. Johnson. 2020. Comparative phylogenomics reveal complex evolution of life history strategies in a clade of bivalves with parasitic larvae (Bivalvia: Unionoida: Ambleminae). Cladistics 36: 505-520. Available electronically.

Cladogram Figures

(click the figure number to see the cladogram)

Cladogram Figure 1
  +-------------------------------------- Quadrula_quadrula      
  |                                                              
  |                                   +-- Pleurobema_strodeanum  
--+  +--------------------------------+                          
  |  |                                +-- Elliptoideus_sloatianus
  |  |                                                           
  |  |                             +----- Reginaia_ebenus        
  +--+  +--------------------------+                             
     |  |                          |  +-- Amblema_plicata        
     |  |                          +--+                          
     |  |                             +-- Plectomerus_dombeyanus 
     +--+                                                        
        |                             +-- Popenaias_popeii       
        |  +--------------------------+                          
        |  |                          +-- Psoronaias_semigranosa 
        |  |                                                     
        +--+  +-------------------------- Obliquaria_reflexa     
           |  |                                                  
           |  |  +----------------------- Cyrtonaias_tampicoensis
           +--+  |                                               
              |  |                    +-- Pachynaias_spheniopsis 
              |  |  +-----------------+                          
              +--+  |                 +-- Lampsilis_cardium      
                 |  |                                            
                 |  |        +----------- Ellipsaria_lineolata   
                 |  |  +-----+                                   
                 +--+  |     |  +-------- Truncilla_truncata     
                    |  |     +--+                                
                    |  |        |  +----- Truncilla_donaciformis 
                    |  |        +--+                             
                    |  |           |  +-- Truncilla_cognata      
                    |  |           +--+                          
                    +--+              +-- Truncilla_macrodon     
                       |                                         
                       |  +-------------- Atlanticoncha_ochracea 
                       |  |                                      
                       |  |           +-- Potamilus_fragilis     
                       |  |     +-----+                          
                       |  |     |     +-- Potamilus_leptodon     
                       +--+  +--+                                
                          |  |  |  +----- Potamilus_metnecktayi  
                          |  |  +--+                             
                          |  |     |  +-- Potamilus_alatus       
                          |  |     +--+                          
                          +--+        +-- Potamilus_purpuratus   
                             |                                   
                             |        +-- Potamilus_capax        
                             |  +-----+                          
                             |  |     +-- Potamilus_inflatus     
                             +--+                                
                                |  +----- Potamilus_ohiensis     
                                +--+                             
                                   |  +-- Potamilus_streckersoni 
                                   +--+                          
                                      +-- Potamilus_amphichaenus 
Cladogram Figure 2-3
  +----------------------------------------- Quadrula_quadrula      
  |                                                                 
  |                                      +-- Pleurobema_strodeanum  
--+  +-----------------------------------+                          
  |  |                                   +-- Elliptoideus_sloatianus
  |  |                                                              
  |  |                                +----- Reginaia_ebenus        
  +--+  +-----------------------------+                             
     |  |                             |  +-- Amblema_plicata        
     |  |                             +--+                          
     |  |                                +-- Plectomerus_dombeyanus 
     +--+                                                           
        |                                +-- Popenaias_popeii       
        |  +-----------------------------+                          
        |  |                             +-- Psoronaias_semigranosa 
        |  |                                                        
        +--+  +----------------------------- Obliquaria_reflexa     
           |  |                                                     
           |  |  +-------------------------- Cyrtonaias_tampicoensis
           +--+  |                                                  
              |  |                       +-- Pachynaias_spheniopsis 
              |  |  +--------------------+                          
              +--+  |                    +-- Lampsilis_cardium      
                 |  |                                               
                 |  |           +----------- Ellipsaria_lineolata   
                 |  |  +--------+                                   
                 +--+  |        |  +-------- Truncilla_truncata     
                    |  |        +--+                                
                    |  |           |  +----- Truncilla_donaciformis 
                    |  |           +--+                             
                    |  |              |  +-- Truncilla_cognata      
                    +--+              +--+                          
                       |                 +-- Truncilla_macrodon     
                       |                                            
                       |  +----------------- Atlanticoncha_ochracea 
                       |  |                                         
                       |  |              +-- Potamilus_capax        
                       +--+  +-----------+                          
                          |  |           +-- Potamilus_inflatus     
                          |  |                                      
                          |  |        +----- Potamilus_ohiensis     
                          +--+  +-----+                             
                             |  |     |  +-- Potamilus_streckersoni 
                             |  |     +--+                          
                             |  |        +-- Potamilus_amphichaenus 
                             +--+                                   
                                |        +-- Potamilus_fragilis     
                                |  +-----+                          
                                |  |     +-- Potamilus_leptodon     
                                +--+                                
                                   |  +----- Potamilus_metnecktayi  
                                   +--+                             
                                      |  +-- Potamilus_alatus       
                                      +--+                          
                                         +-- Potamilus_purpuratus   
 
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