MUSSELp
 
MUSSELpdb
 
 
Taxonomy
 
 
Geography
 
 
 

Page last updated
Wed 06 Nov 2024

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!

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!

Search the database pages:

Bivalvia | Unionoida | Unionoidea | Unionidae | Ambleminae | Lampsilini

genus Medionidus Simpson, 1900: cladomics
     7 valid species

Cladomics Summary

number of species = 7

analyzed in 19 cladograms in 12 publications
maximum number of terminals in an analysis = 2, mean = 1.21

Basic Monophyly

number of cladograms that test basic monophyly (i.e., more than 1 included species) = 4
maximum number of included terminals = 2, mean = 2.0
proportion of cladograms that support basic monophyly = 0


Pairwise Cladogram Clustering

The graphs below depict in two dimensions all pair-wise ingroup distances within the cladome. See the Cladmoics FARQ for more information.


PCoA Ordination


NJ tree


Zanatta & Murphy, 2006 [Publ 2672], fig. 1

iT tT bi riS oT roT roS iD
2 6 0 2 54 46 22 0.0

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

                                   +-- Cyrtonaias             
  +--------------------------------+                          
  |                                +-- Glebula                
  |                                                           
--+  +-------------------------------- Paetulunio             
  |  |                                                        
  |  |                             +-- Obliquaria             
  +--+  +--------------------------+                          
     |  |                          +-- Toxolasma              
     |  |                                                     
     |  |  +-------------------------- Sagittunio             
     +--+  |                                                  
        |  |              +----------- Potamilus              
        |  |              |                                   
        |  |  +-----------+        +-- Medionidus_conradicus **  
        |  |  |           |  +-----+                          
        +--+  |           |  |     +-- Ptychobranchus         
           |  |           +--+                                
           |  |              |  +----- Medionidus_acutissimus ** 
           |  |              |  |                             
           |  |              +--+----- Lemiox                 
           |  |                 |                             
           |  |                 |  +-- Dromus                 
           +--+                 +--+                          
              |                    +-- Cyprogenia             
              |                                               
              |                 +----- Lampsilis_teres        
              |  +--------------+                             
              |  |              |  +-- Truncilla              
              |  |              +--+                          
              |  |                 +-- Ellipsaria             
              |  |                                            
              +--+  +----------------- Leaunio                
                 |  |                                         
                 |  |     +----------- Hamiota                
                 |  |     |                                   
                 |  |  +--+        +-- Lampsilis_fasciola     
                 +--+  |  |  +-----+                          
                    |  |  |  |     +-- Ortmanniana_pectorosa  
                    |  |  +--+                                
                    |  |     |  +----- Lampsilis_ornata       
                    |  |     +--+                             
                    |  |        |  +-- Lampsilis_ovata        
                    +--+        +--+                          
                       |           +-- Lampsilis_cardium      
                       |                                      
                       |        +----- Venustaconcha          
                       |  +-----+                             
                       |  |     |  +-- Obovaria               
                       |  |     +--+                          
                       +--+        +-- Epioblasma             
                          |                                   
                          |  +-------- Lampsilis_siliquoidea  
                          +--+                                
                             |  +----- Ortmanniana_ligamentina
                             +--+                             
                                |  +-- Cambarunio             
                                +--+                          
                                   +-- Ligumia                

Campbell et al., 2005 [Publ 2660], fig. 2

iT tT bi riS oT roT roS iD
2 6 0 2 100 41 22 4.0
           +----- Obliquaria                    
  +--------+                                    
  |        |  +-- Cyrtonaias                    
  |        +--+                                 
  |           +-- Glebula                       
  |                                             
  |  +----------- Sagittunio                    
  |  |                                          
  |  +----------- Leaunio                       
  |  |                                          
  |  +----------- Potamilus                     
  |  |                                          
  |  +----------- Hamiota                       
  |  |                                          
  |  |        +-- Ellipsaria                    
--+  +--------+                                 
  |  |        +-- Truncilla                     
  |  |                                          
  |  |     +----- Lampsilis_teres               
  |  +-----+                                    
  |  |     |  +-- Ortmanniana_ligamentina       
  |  |     +--+                                 
  |  |        +-- Lampsilis_siliquoidea         
  |  |                                          
  |  |     +----- Villosa                       
  |  +-----+                                    
  |  |     |  +-- Ligumia                       
  |  |     +--+                                 
  |  |        +-- Cambarunio                    
  |  |                                          
  +--+  +-------- Ortmanniana_pectorosa         
     +--+                                       
     |  |  +----- Lampsilis_ornata              
     |  +--+                                    
     |     |  +-- Lampsilis_cardium             
     |     +--+                                 
     |        +-- Lampsilis_ovata               
     |                                          
     |  +-------- Obovaria_olivaria             
     |  |                                       
     |  +-------- Venustaconcha_ellipsiformis__2
     +--+                                       
     |  +-------- Epioblasma                    
     |  |                                       
     |  |  +----- Obovaria_unicolor             
     |  +--+                                    
     |     |  +-- Obovaria_arkansasensis        
     |     +--+                                 
     |        +-- Obovaria_subrotunda           
     |                                          
     |        +-- Ptychobranchus                
     |  +-----+                                 
     |  |     +-- Venustaconcha_ellipsiformis__1
     |  |                                       
     +--+  +----- Medionidus_conradicus **         
        |  |                                    
        |  |  +-- Lemiox                        
        +--+--+                                 
           |  +-- Medionidus_acutissimus **        
           |                                    
           |  +-- Dromus                        
           +--+                                 
              +-- Cyprogenia                    

Zanatta & Murphy, 2006 [Publ 2672], fig. 2

iT tT bi riS oT roT roS iD
2 3 0 2 55 46 22 3.0
                                      +-- Paetulunio             
  +-----------------------------------+                          
  |                                   +-- Toxolasma              
  |                                                              
  |                                +----- Obliquaria             
  |  +-----------------------------+                             
--+  |                             |  +-- Glebula                
  |  |                             +--+                          
  |  |                                +-- Cyrtonaias             
  |  |                                                           
  |  |                             +----- Ptychobranchus         
  |  |                          +--+                             
  +--+                          |  |  +-- Dromus                 
     |                          |  +--+                          
     |  +-----------------------+     +-- Cyprogenia             
     |  |                       |                                
     |  |                       |  +----- Medionidus_conradicus **  
     |  |                       +--+                             
     |  |                          |  +-- Medionidus_acutissimus ** 
     |  |                          +--+                          
     +--+                             +-- Lemiox                 
        |                                                        
        |  +----------------------------- Sagittunio             
        |  |                                                     
        |  +----------------------------- Potamilus              
        |  |                                                     
        |  |                          +-- Truncilla              
        +--+  +-----------------------+                          
           |  |                       +-- Ellipsaria             
           |  |                                                  
           |  |                       +-- Ortmanniana_pectorosa  
           |  |                 +-----+                          
           |  |                 |     +-- Lampsilis_fasciola     
           +--+  +--------------+                                
              |  |              |  +----- Lampsilis_ornata       
              |  |              +--+                             
              |  |                 |  +-- Lampsilis_ovata        
              |  |                 +--+                          
              |  |                    +-- Lampsilis_cardium      
              +--+                                               
                 |                    +-- Ligumia                
                 |                 +--+                          
                 |                 |  +-- Cambarunio             
                 |  +--------------+                             
                 |  |              |  +-- Lampsilis_teres        
                 |  |              +--+                          
                 +--+                 +-- Hamiota                
                    |                                            
                    |  +----------------- Leaunio                
                    |  |                                         
                    +--+  +-------------- Ortmanniana_ligamentina
                       |  |                                      
                       +--+  +----------- Lampsilis_siliquoidea  
                          |  |                                   
                          +--+  +-------- Obovaria_olivaria      
                             |  |                                
                             |  +-------- Venustaconcha          
                             +--+                                
                                +-------- Epioblasma             
                                |                                
                                |  +----- Obovaria_unicolor      
                                +--+                             
                                   |  +-- Obovaria_subrotunda    
                                   +--+                          
                                      +-- Obovaria_arkansasensis 

Campbell et al., 2005 [Publ 2660], fig. 1

iT tT bi riS oT roT roS iD
2 9 0 2 100 41 22 4.0
                       +-------- Toxolasma                     
  +--------------------+                                       
  |                    |  +----- Obliquaria                    
  |                    +--+                                    
  |                       |  +-- Cyrtonaias                    
  |                       +--+                                 
  |                          +-- Glebula                       
  |                                                            
  |              +-------------- Potamilus                     
  |              |                                             
  |              |     +-------- Medionidus_acutissimus **        
--+              |  +--+                                       
  |  +-----------+  |  |  +----- Lemiox                        
  |  |           |  |  +--+                                    
  |  |           |  |     |  +-- Dromus                        
  |  |           |  |     +--+                                 
  |  |           +--+        +-- Cyprogenia                    
  |  |              |                                          
  |  |              |        +-- Sagittunio                    
  |  |              |     +--+                                 
  |  |              |     |  +-- Medionidus_conradicus **         
  +--+              +-----+                                    
     |                    |  +-- Ptychobranchus                
     |                    +--+                                 
     |                       +-- Venustaconcha_ellipsiformis__2
     |                                                         
     |                       +-- Ellipsaria                    
     |  +--------------------+                                 
     |  |                    +-- Truncilla                     
     |  |                                                      
     |  |  +-------------------- Villosa                       
     +--+  |                                                   
        |  |                 +-- Obovaria_olivaria             
        |  |        +--------+                                 
        |  |        |        +-- Venustaconcha_ellipsiformis__1
        |  |  +-----+                                          
        +--+  |     |  +-------- Epioblasma                    
           |  |     +--+                                       
           |  |        |  +----- Obovaria_unicolor             
           |  |        +--+                                    
           |  |           |  +-- Obovaria_arkansasensis        
           |  |           +--+                                 
           |  |              +-- Obovaria_subrotunda           
           +--+                                                
              |        +-------- Hamiota                       
              |        |                                       
              |  +-----+     +-- Lampsilis_cardium             
              |  |     |  +--+                                 
              |  |     |  |  +-- Lampsilis_ovata               
              |  |     +--+                                    
              |  |        |  +-- Ortmanniana_pectorosa         
              +--+        +--+                                 
                 |           +-- Lampsilis_ornata              
                 |                                             
                 |           +-- Ligumia                       
                 |  +--------+                                 
                 |  |        +-- Cambarunio                    
                 +--+                                          
                    |  +-------- Lampsilis_teres               
                    +--+                                       
                       |  +----- Ortmanniana_ligamentina       
                       +--+                                    
                          |  +-- Lampsilis_siliquoidea         
                          +--+                                 
                             +-- Leaunio                       

Lydeard et al., 1996 [Publ 2656], fig. 4

iT tT bi riS oT roT roS iD
1 1 0 1 27 8 6 --
  +-------------------- Obliquaria           
--+                                          
  |  +----------------- Medionidus_conradicus **
  +--+                                       
     |  +-------------- Ptychobranchus       
     +--+                                    
        |  +----------- Potamilus_fragilis   
        +--+                                 
           |  +-------- Potamilus_purpuratus 
           +--+                              
              |  +----- Ellipsaria           
              +--+                           
                 |  +-- Villosa              
                 +--+                        
                    +-- Lampsilis            

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

iT tT bi riS oT roT roS iD
1 1 0 1 197 13 11 --
  +----- Ellipsaria           
  |                           
  +----- Potamilus_leptodon   
  |                           
  +----- Medionidus_conradicus **
  |                           
  +----- Potamilus_alatus     
  |                           
  +----- Ptychobranchus       
--+                           
  +----- Truncilla            
  |                           
  +----- Venustaconcha        
  |                           
  +----- Cambarunio           
  |                           
  +----- Leaunio              
  |                           
  |  +-- Ortmanniana          
  +--+                        
     +-- Lampsilis            

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

iT tT bi riS oT roT roS iD
1 1 0 1 33 7 6 --
  +----------------- Medionidus_conradicus **
--+                                       
  |  +-------------- Potamilus_fragilis   
  +--+                                    
     |  +----------- Ptychobranchus       
     +--+                                 
        |  +-------- Potamilus_purpuratus 
        +--+                              
           |  +----- Lampsilis            
           +--+                           
              |  +-- Villosa              
              +--+                        
                 +-- Ellipsaria           

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

iT tT bi riS oT roT roS iD
1 1 0 1 33 7 6 --
-- Medionidus_conradicus

Grobler et al., 2011 [Publ 3359], fig. 2

iT tT bi riS oT roT roS iD
1 1 0 1 16 15 9 --
        +-------- Lemiox               
  +-----+                              
  |     |  +----- Medionidus_conradicus **
  |     +--+                           
  |        |  +-- Dromus               
  |        +--+                        
--+           +-- Cyprogenia           
  |                                    
  |  +----------- Potamilus            
  |  |                                 
  |  |     +----- Lampsilis_siliquoidea
  |  |  +--+                           
  +--+  |  |  +-- Lampsilis_higginsii  
     |  |  +--+                        
     |  |     +-- Ortmanniana          
     |  |                              
     |  |  +----- Lampsilis_fasciola   
     +--+--+                           
        |  |  +-- Lampsilis_cardium    
        |  +--+                        
        |     +-- Lampsilis_ovata      
        |                              
        |     +-- Cambarunio           
        |     |                        
        +-----+-- Ligumia              
              |                        
              +-- Epioblasma           

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

iT tT bi riS oT roT roS iD
1 1 0 1 197 13 11 --
  +-------------- Potamilus_leptodon   
  |                                    
  |  +----------- Potamilus_alatus     
--+  |                                 
  |  |  +-------- Venustaconcha        
  |  |  |                              
  +--+  +-------- Leaunio              
     |  |                              
     |  |     +-- Ellipsaria           
     |  +-----+                        
     +--+     +-- Truncilla            
        |                              
        |     +-- Medionidus_conradicus **
        +-----+                        
        |     +-- Ptychobranchus       
        |                              
        |  +----- Cambarunio           
        +--+                           
           |  +-- Ortmanniana          
           +--+                        
              +-- Lampsilis            

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

iT tT bi riS oT roT roS iD
1 1 0 1 195 13 11 --
  +-------------------- Potamilus_leptodon   
  |                                          
--+  +----------------- Potamilus_alatus     
  |  |                                       
  |  |              +-- Medionidus_conradicus **
  +--+  +-----------+                        
     |  |           +-- Ptychobranchus       
     |  |                                    
     +--+           +-- Ellipsaria           
        |  +--------+                        
        |  |        +-- Truncilla            
        +--+                                 
           |  +-------- Leaunio              
           |  |                              
           +--+     +-- Venustaconcha        
              |  +--+                        
              |  |  +-- Cambarunio           
              +--+                           
                 |  +-- Ortmanniana          
                 +--+                        
                    +-- Lampsilis            

Smith et al., 2019 [Publ 3951], fig. 2

iT tT bi riS oT roT roS iD
1 1 0 1 40 35 19 --
  +----------------------- Obliquaria             
  |                                               
  |                    +-- Medionidus_conradicus **  
  |                 +--+                          
  |                 |  +-- Lemiox                 
--+  +--------------+                             
  |  |              |  +-- Cyprogenia             
  |  |              +--+                          
  |  |                 +-- Ptychobranchus         
  |  |                                            
  +--+           +-------- Potamilus              
     |  +--------+                                
     |  |        |  +----- Atlanticoncha          
     |  |        +--+                             
     |  |           |  +-- Ellipsaria             
     |  |           +--+                          
     +--+              +-- Truncilla              
        |                                         
        |              +-- Hamiota                
        |  +-----------+                          
        |  |           +-- Villosa                
        |  |                                      
        +--+  +----------- Ligumia                
           |  |                                   
           |  |     +----- Venustaconcha          
           +--+  +--+                             
              |  |  |  +-- Obovaria               
              |  |  +--+                          
              +--+     +-- Epioblasma             
                 |                                
                 |  +----- Ortmanniana_pectorosa  
                 +--+                             
                    |  +-- Ortmanniana_ligamentina
                    +--+                          
                       +-- Lampsilis              

Serb et al., 2003 [Publ 2659], fig. 2

iT tT bi riS oT roT roS iD
1 1 0 1 28 6 5 --
  +----- Medionidus_conradicus **
--+                           
  |  +-- Dromus               
  +--+                        
     +-- Cyprogenia           

Serb et al., 2003 [Publ 2659], fig. 3

iT tT bi riS oT roT roS iD
1 1 0 1 28 6 5 --
  +----- Medionidus_conradicus **
--+                           
  |  +-- Dromus               
  +--+                        
     +-- Cyprogenia           

Roe, 2013 [Publ 3571], fig. 4

iT tT bi riS oT roT roS iD
1 1 0 1 10 10 5 --
  +----------- Obliquaria           
  |                                 
--+----------- Lampsilis            
  |                                 
  |  +-------- Medionidus_conradicus **
  +--+                              
     |  +----- Ptychobranchus       
     +--+                           
        |  +-- Cyprogenia           
        +--+                        
           +-- Dromus               

Turner et al., 2000 [Publ 2722], fig. 2

iT tT bi riS oT roT roS iD
1 1 0 1 13 8 2 --
  +-------------------- Medionidus_conradicus **   
  |                                             
--+  +----------------- Lampsilis_teres         
  |  |                                          
  |  +----------------- Villosa                 
  +--+                                          
     |              +-- Lampsilis_satura        
     |  +-----------+                           
     |  |           +-- Lampsilis_cardium       
     +--+                                       
        |  +----------- Lampsilis_reeveiana     
        |  |                                    
        +--+  +-------- Lampsilis_hydiana__1    
           |  |                                 
           +--+-------- Lampsilis_hydiana__2    
              |                                 
              |  +----- Lampsilis_siliquoidea__2
              +--+                              
                 |  +-- Lampsilis_siliquoidea__1
                 +--+                           
                    +-- Lampsilis_powellii      

Lydeard et al., 1996 [Publ 2656], fig. 3

iT tT bi riS oT roT roS iD
1 1 0 1 26 8 6 --
  +-------------- Potamilus_fragilis   
  |                                    
--+  +----------- Ptychobranchus       
  |  |                                 
  +--+  +-------- Medionidus_conradicus **
     |  |                              
     +--+  +----- Potamilus_purpuratus 
        |  |                           
        +--+----- Lampsilis            
           |                           
           |  +-- Ellipsaria           
           +--+                        
              +-- Villosa              

Krebs et al., 2003 [Publ 2691], fig. 3

iT tT bi riS oT roT roS iD
1 1 0 1 32 10 7 --
           +----- Ptychobranchus       
  +--------+                           
  |        |  +-- Potamilus_fragilis   
  |        +--+                        
  |           +-- Medionidus_conradicus **
--+                                    
  |           +-- Villosa              
  |  +--------+                        
  |  |        +-- Ellipsaria           
  +--+                                 
     |  +-------- Lampsilis_teres      
     +--+                              
        |  +----- Lampsilis_siliquoidea
        +--+                           
           |  +-- Potamilus_purpuratus 
           +--+                        
              +-- Potamilus_alatus     

Burlakova et al., 2019 [Publ 3899], fig. 1

iT tT bi riS oT roT roS iD
1 1 0 1 32 25 17 --
  +----------------- Toxolasma             
  |                                        
  |  +-------------- Potamilus             
  |  |                                     
  |  |           +-- Ellipsaria            
  |  +-----------+                         
--+  |           +-- Truncilla             
  |  |                                     
  |  |        +----- Medionidus_acutissimus **
  |  +--------+                            
  |  |        |  +-- Lemiox                
  |  |        +--+                         
  +--+           +-- Dromus                
     |                                     
     |  +----------- Cambarunio            
     |  |                                  
     |  +----------- Leaunio               
     |  |                                  
     |  +----------- Villosa               
     |  |                                  
     |  |        +-- Sagittunio            
     |  +--------+                         
     +--+        +-- Lampsilis_ovata       
        |                                  
        |     +----- Venustaconcha         
        +-----+                            
        |     |  +-- Epioblasma            
        |     +--+                         
        |        +-- Obovaria              
        |                                  
        |  +-------- Lampsilis_teres       
        +--+                               
           |  +----- Lampsilis_siliquoidea 
           +--+                            
              |  +-- Lampsilis_hydiana     
              +--+                         
                 +-- Lampsilis_straminea   

Page updated: 08:36:38 Wed 06 Nov 2024

 
NSF icon MUSSEL icon
"Making the world a better place, one mollusk at a time."