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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 Froufe et al. (2019): cladograms
     publication summary | cladograms

Complete Citation

Froufe, E., I. Bolotov, D.C. Aldridge, A.E. Bogan, S. Breton et al. 2019. Mesozoic mitogenome rearrangements and freshwater mussel (Bivalvia: Unionoidea) macroevolution. Heredity 124: 182-196. Available electronically.

Cladogram Figures

(click the figure number to see the cladogram)

Cladogram Figure 3
                             +----- Pseudunio_marocanus        
  +--------------------------+                                 
  |                          |  +-- Margaritifera_dahurica     
  |                          +--+                              
  |                             +-- Margaritifera_falcata      
  |                                                            
  |                    +----------- Quadrula_quadrula          
  |                    |                                       
  |  +-----------------+  +-------- Toxolasma_parvum           
  |  |                 |  |                                    
  |  |                 +--+     +-- Lampsilis_ornata           
  |  |                    |  +--+                              
--+  |                    |  |  +-- Venustaconcha_ellipsiformis
  |  |                    +--+                                 
  |  |                       |  +-- Potamilus_leptodon         
  |  |                       +--+                              
  |  |                          +-- Potamilus_alatus           
  |  |                                                         
  |  |                       +----- Chamberlainia_somsakpanhai 
  |  |           +-----------+                                 
  |  |           |           |  +-- Sinohyriopsis_cumingii     
  |  |           |           +--+                              
  |  |           |              +-- Sinohyriopsis_schlegelii   
  +--+           |                                             
     |  +--------+        +-------- Potomida_littoralis        
     |  |        |  +-----+                                    
     |  |        |  |     |  +----- Pronodularia_japanensis    
     |  |        |  |     +--+                                 
     |  |        |  |        |  +-- Lamprotula_leaii           
     |  |        |  |        +--+                              
     |  |        +--+           +-- Lamprotula_caveata         
     |  |           |                                          
     |  |           |           +-- Pilsbryoconcha_exilis      
     |  |           |  +--------+                              
     |  |           |  |        +-- Pseudodon_vondembuschianus 
     |  |           +--+                                       
     |  |              |  +-------- Ptychorhynchus_pfisteri    
     |  |              +--+                                    
     +--+                 |  +----- Microcondylaea_bonellii    
        |                 +--+                                 
        |                    |  +-- Sinosolenaia_carinata      
        |                    +--+                              
        |                       +-- Sinosolenaia_oleivora      
        |                                                      
        |  +----------------------- Lepidodesma_languilati     
        |  |                                                   
        |  |                 +----- Aculamprotula_tortuosa     
        |  |        +--------+                                 
        |  |        |        |  +-- Aculamprotula_tientsinensis
        |  |        |        +--+                              
        |  |        |           +-- Aculamprotula_coreana      
        |  |  +-----+                                          
        +--+  |     |        +----- Nodularia_douglasiae       
           |  |     |  +-----+                                 
           |  |     |  |     |  +-- Tchangsinaia_piscicula     
           |  |     |  |     +--+                              
           |  |     +--+        +-- Schistodesmus_lampreyanus  
           |  |        |                                       
           |  |        |  +-------- Unio_tumidus               
           |  |        +--+                                    
           |  |           |  +----- Unio_nanus                 
           +--+           +--+                                 
              |              |  +-- Unio_pictorum              
              |              +--+                              
              |                 +-- Unio_delphinus             
              |                                                
              |                 +-- Lanceolaria_lanceolata     
              |  +--------------+                              
              |  |              +-- Lanceolaria_grayii         
              |  |                                             
              |  |        +-------- Cristaria_plicata          
              +--+  +-----+                                    
                 |  |     |  +----- Anemina_arcaeformis        
                 |  |     +--+                                 
                 |  |        |  +-- Sinanodonta_lucida         
                 +--+        +--+                              
                    |           +-- Sinanodonta_woodiana       
                    |                                          
                    |  +----------- Anodonta_anatina           
                    +--+                                       
                       |  +-------- Lasmigona_complanata       
                       +--+                                    
                          |  +----- Pyganodon_grandis          
                          +--+                                 
                             |  +-- Utterbackia_peninsularis   
                             +--+                              
                                +-- Utterbackia_imbecillis     
Cladogram Figure 3-M
  +-------------------- Pseudunio_marocanus        
  |                                                
  |              +----- Quadrula_quadrula          
  |  +-----------+                                 
  |  |           |  +-- Potamilus_alatus           
--+  |           +--+                              
  |  |              +-- Venustaconcha_ellipsiformis
  |  |                                             
  |  |           +----- Unio_tumidus               
  |  |     +-----+                                 
  |  |     |     |  +-- Unio_nanus                 
  +--+     |     +--+                              
     |  +--+        +-- Unio_delphinus             
     |  |  |                                       
     |  |  |  +-------- Sinanodonta_woodiana       
     |  |  +--+                                    
     |  |     |  +----- Anodonta_anatina           
     |  |     +--+                                 
     |  |        |  +-- Utterbackia_peninsularis   
     +--+        +--+                              
        |           +-- Pyganodon_grandis          
        |                                          
        |           +-- Chamberlainia_somsakpanhai 
        |  +--------+                              
        |  |        +-- Sinohyriopsis_cumingii     
        |  |                                       
        +--+        +-- Potomida_littoralis        
           |  +-----+                              
           |  |     +-- Pronodularia_japanensis    
           |  |                                    
           +--+     +-- Microcondylaea_bonellii    
              |  +--+                              
              |  |  +-- Sinosolenaia_carinata      
              +--+                                 
                 |  +-- Pilsbryoconcha_exilis      
                 +--+                              
                    +-- Pseudodon_vondembuschianus 
Cladogram Figure 4
  +-------------------- Pseudunio_marocanus        
  |                                                
  |              +----- Quadrula_quadrula          
  |  +-----------+                                 
  |  |           |  +-- Potamilus_alatus           
--+  |           +--+                              
  |  |              +-- Venustaconcha_ellipsiformis
  |  |                                             
  |  |           +----- Unio_tumidus               
  |  |     +-----+                                 
  |  |     |     |  +-- Unio_nanus                 
  +--+     |     +--+                              
     |  +--+        +-- Unio_delphinus             
     |  |  |                                       
     |  |  |  +-------- Sinanodonta_woodiana       
     |  |  +--+                                    
     |  |     |  +----- Anodonta_anatina           
     |  |     +--+                                 
     |  |        |  +-- Utterbackia_peninsularis   
     +--+        +--+                              
        |           +-- Pyganodon_grandis          
        |                                          
        |           +-- Chamberlainia_somsakpanhai 
        |  +--------+                              
        |  |        +-- Sinohyriopsis_cumingii     
        |  |                                       
        +--+        +-- Potomida_littoralis        
           |  +-----+                              
           |  |     +-- Pronodularia_japanensis    
           |  |                                    
           +--+     +-- Microcondylaea_bonellii    
              |  +--+                              
              |  |  +-- Sinosolenaia_carinata      
              +--+                                 
                 |  +-- Pilsbryoconcha_exilis      
                 +--+                              
                    +-- Pseudodon_vondembuschianus 
Cladogram Figure 6
                             +----- Pseudunio_marocanus        
  +--------------------------+                                 
  |                          |  +-- Margaritifera_dahurica     
  |                          +--+                              
  |                             +-- Margaritifera_falcata      
  |                                                            
  |                    +----------- Quadrula_quadrula          
  |                    |                                       
  |  +-----------------+  +-------- Toxolasma_parvum           
  |  |                 |  |                                    
  |  |                 +--+     +-- Potamilus_leptodon         
  |  |                    |  +--+                              
--+  |                    |  |  +-- Potamilus_alatus           
  |  |                    +--+                                 
  |  |                       |  +-- Lampsilis_ornata           
  |  |                       +--+                              
  |  |                          +-- Venustaconcha_ellipsiformis
  |  |                                                         
  |  |                       +----- Chamberlainia_somsakpanhai 
  |  |           +-----------+                                 
  |  |           |           |  +-- Sinohyriopsis_cumingii     
  |  |           |           +--+                              
  |  |           |              +-- Sinohyriopsis_schlegelii   
  +--+           |                                             
     |  +--------+        +-------- Potomida_littoralis        
     |  |        |  +-----+                                    
     |  |        |  |     |  +----- Pronodularia_japanensis    
     |  |        |  |     +--+                                 
     |  |        |  |        |  +-- Lamprotula_leaii           
     |  |        |  |        +--+                              
     |  |        +--+           +-- Lamprotula_caveata         
     |  |           |                                          
     |  |           |           +-- Pilsbryoconcha_exilis      
     |  |           |  +--------+                              
     |  |           |  |        +-- Pseudodon_vondembuschianus 
     |  |           +--+                                       
     |  |              |  +-------- Ptychorhynchus_pfisteri    
     |  |              +--+                                    
     +--+                 |  +----- Microcondylaea_bonellii    
        |                 +--+                                 
        |                    |  +-- Sinosolenaia_carinata      
        |                    +--+                              
        |                       +-- Sinosolenaia_oleivora      
        |                                                      
        |  +----------------------- Lepidodesma_languilati     
        |  |                                                   
        |  |                 +----- Aculamprotula_tortuosa     
        |  |        +--------+                                 
        |  |        |        |  +-- Aculamprotula_tientsinensis
        |  |        |        +--+                              
        |  |        |           +-- Aculamprotula_coreana      
        |  |  +-----+                                          
        +--+  |     |        +----- Nodularia_douglasiae       
           |  |     |  +-----+                                 
           |  |     |  |     |  +-- Tchangsinaia_piscicula     
           |  |     |  |     +--+                              
           |  |     +--+        +-- Schistodesmus_lampreyanus  
           |  |        |                                       
           |  |        |  +-------- Unio_tumidus               
           |  |        +--+                                    
           |  |           |  +----- Unio_nanus                 
           +--+           +--+                                 
              |              |  +-- Unio_pictorum              
              |              +--+                              
              |                 +-- Unio_delphinus             
              |                                                
              |                 +-- Lanceolaria_lanceolata     
              |  +--------------+                              
              |  |              +-- Lanceolaria_grayii         
              |  |                                             
              |  |        +-------- Cristaria_plicata          
              +--+  +-----+                                    
                 |  |     |  +----- Anemina_arcaeformis        
                 |  |     +--+                                 
                 |  |        |  +-- Sinanodonta_lucida         
                 +--+        +--+                              
                    |           +-- Sinanodonta_woodiana       
                    |                                          
                    |  +----------- Anodonta_anatina           
                    +--+                                       
                       |  +-------- Lasmigona_complanata       
                       +--+                                    
                          |  +----- Pyganodon_grandis          
                          +--+                                 
                             |  +-- Utterbackia_peninsularis   
                             +--+                              
                                +-- Utterbackia_imbecillis     
 
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