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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 Araujo et al. (2009): cladograms
     publication summary | cladograms

Complete Citation

Araujo, R., C. Toledo & A. Machordom. 2009. Redescription of Unio gibbus Spengler, 1793, a west Palaearctic freshwater mussel with hookless glochidia. Malacologia 51(1): 131-141. Available electronically.

Cladogram Figures

(click the figure number to see the cladogram)

Cladogram Figure 7A
  +-------------------- Pseudunio_auricularius
  |                                           
--+  +----------------- Amblema_plicata       
  |  |                                        
  +--+  +-------------- Potomida_littoralis   
     |  |                                     
     +--+  +----------- Nodularia_douglasiae  
        |  |                                  
        |  |        +-- Unio_gibbus           
        +--+        |                         
           |  +-----+-- Unio_tumidus          
           |  |     |                         
           |  |     +-- Anodonta_cygnea       
           +--+                               
              |  +----- Unio_pictorum__1      
              |  |                            
              |  +----- Unio_pictorum__2      
              +--+                            
                 +----- Unio_mancus           
                 |                            
                 |  +-- Unio_tumidiformis     
                 +--+                         
                    +-- Unio_crassus          
Cladogram Figure 7B
  +-------------------------- Pseudunio_auricularius
  |                                                 
--+  +----------------------- Potomida_littoralis   
  |  |                                              
  +--+  +-------------------- Amblema_plicata       
     |  |                                           
     +--+  +----------------- Anodonta_cygnea       
        |  |                                        
        +--+  +-------------- Unio_gibbus           
           |  |                                     
           +--+  +----------- Unio_tumidus          
              |  |                                  
              |  |        +-- Unio_tumidiformis     
              +--+  +-----+                         
                 |  |     +-- Unio_crassus          
                 |  |                               
                 +--+     +-- Unio_pictorum__1      
                    |  +--+                         
                    |  |  +-- Unio_mancus           
                    +--+                            
                       |  +-- Unio_pictorum__2      
                       +--+                         
                          +-- Unio_caffer           
Cladogram Figure 7C
  +-------------------- Pseudunio_auricularius
  |                                           
--+  +----------------- Potomida_littoralis   
  |  |                                        
  +--+  +-------------- Amblema_plicata       
     |  |                                     
     +--+  +----------- Anodonta_cygnea       
        |  |                                  
        |  |        +-- Unio_gibbus           
        +--+  +-----+                         
           |  |     +-- Unio_tumidus          
           |  |                               
           +--+     +-- Unio_tumidiformis     
              |  +--+                         
              |  |  +-- Unio_crassus          
              +--+                            
                 |  +-- Unio_pictorum__1      
                 |  |                         
                 +--+-- Unio_pictorum__2      
                    |                         
                    +-- Unio_mancus           
 
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