Bivalvia | Unionida | Hyrioidea | Hyriidae | Hyriinae | Rhipidodontini

genus Diplodon Spix in Wagner, 1827: cladomics

41 Recent valid species (41 total species)

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!

Cladomics Summary

number of species = 41 (41 total)
analyzed in 25 cladograms in 17 publications
maximum number of terminals in an analysis = 3 (mean = 1.44, median = 1)

Basic Monophyly

number of cladograms that test basic monophyly (i.e., more than 1 included species) = 9
maximum number of included terminals = 3, (mean = 2.22 median = 2)
proportion of cladograms that support basic monophyly = 1

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 of Diplodon cladogram distances
PCoA Ordination

NJ Tree of Diplodon cladogram distances
NJ Tree

Cladograms

Prié et al., 2026 [Publ 4844], fig. 2

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

cstiTtTbiriSoTroTroSiD
0.750 3 3 1 3 20 3 2 ** 
           +----- Diplodon_gratus **    
  +--------+                         
  |        |  +-- Diplodon_suavidicus **
  |        +--+                      
  |           +-- Diplodon_chilensis ** 
--+                                  
  |  +----------- Guyanhyrida        
  |  |                               
  |  |     +----- Iridea             
  +--+  +--+                         
     |  |  |  +-- Prisodon           
     |  |  +--+                      
     |  |     +-- Triplodon          
     +--+                            
        |     +-- Castalia_cordata   
        |  +--+                      
        |  |  +-- Callonaia          
        +--+                         
           |  +-- Castalia_ambigua   
           +--+                      
              +-- Castaliella

Campbell & Lydeard, 2026 [Publ 4810], fig. 6-14

cstiTtTbiriSoTroTroSiD
0.667 3 3 1 3 630 1 1 2.0 
  +-------- Hyridella          
--+                            
  |  +----- Diplodon_suavidicus **
  +--+                         
     |  +-- Diplodon_chilensis ** 
     +--+                      
        +-- Diplodon_gratus **

Santos-Neto et al., 2016 [Publ 3739], fig. 2a_b

cstiTtTbiriSoTroTroSiD
0.667 2 2 0 2 19 1 1 -- 
  +----- Hyridella          
--+                         
  |  +-- Diplodon_gratus **    
  +--+                      
     +-- Diplodon_suavidicus **

Santos-Neto et al., 2016 [Publ 3739], fig. 4

cstiTtTbiriSoTroTroSiD
0.667 2 2 0 2 19 1 1 -- 
  +----- Hyridella          
--+                         
  |  +-- Diplodon_suavidicus **
  +--+                      
     +-- Diplodon_gratus **

Graf & Cummings, 2006 [Publ 1968], fig. 2

cstiTtTbiriSoTroTroSiD
1.000 2 2 0 2 45 0 0 -- 
  +----- Castalia          
--+                        
  |  +-- Diplodon_chilensis **
  +--+                     
     +-- Diplodon_gratus **

Hoeh et al., 2009 [Publ 2716], fig. 3

cstiTtTbiriSoTroTroSiD
1.000 2 2 0 2 45 0 0 -- 
  +----- Castalia          
--+                        
  |  +-- Diplodon_chilensis **
  +--+                     
     +-- Diplodon_gratus **

Hoeh et al., 2009 [Publ 2716], fig. 4

cstiTtTbiriSoTroTroSiD
1.000 2 2 0 2 44 0 0 -- 
  +----- Castalia          
--+                        
  |  +-- Diplodon_chilensis **
  +--+                     
     +-- Diplodon_gratus **

Hoeh et al., 2009 [Publ 2716], fig. 5

cstiTtTbiriSoTroTroSiD
1.000 2 2 0 2 44 0 0 -- 
  +----- Castalia          
--+                        
  |  +-- Diplodon_chilensis **
  +--+                     
     +-- Diplodon_gratus **

Marshall et al., 2014 [Publ 3593], fig. 1

cstiTtTbiriSoTroTroSiD
1.000 2 2 0 2 12 0 0 -- 
     +-- Cucumerunio       
  +--+                     
  |  +-- Hyridella         
--+                        
  |  +-- Diplodon_chilensis **
  +--+                     
     +-- Diplodon_gratus **

Graf, 2000 [Publ 2647], fig. 1

cstiTtTbiriSoTroTroSiD
1.000 1 1 0 1 16 0 0 -- 
  +----- Diplodon ** 
--+               
  |  +-- Hyridella
  +--+            
     +-- Velesunio

Graf & Ó Foighil, 2000 [Publ 2649], fig. 1_2

cstiTtTbiriSoTroTroSiD
1.000 1 1 0 1 10 0 0 -- 
  +-- Diplodon_chilensis **
--+                     
  +-- Castalia

Bogan & Hoeh, 2000 [Publ 2650], fig. 1

cstiTtTbiriSoTroTroSiD
1.000 1 1 0 1 33 0 0 -- 
  +-- Castalia       
--+                  
  +-- Diplodon_gratus **

Hoeh et al., 2001 [Publ 2652], fig. 14f2

cstiTtTbiriSoTroTroSiD
1.000 1 1 0 1 30 0 0 -- 
  +----- Diplodon_gratus **
  |                     
  +----- Echyridella    
--+                     
  +----- Lortiella      
  |                     
  |  +-- Castalia       
  +--+                  
     +-- Velesunio

Hoeh et al., 2001 [Publ 2652], fig. 14f4

cstiTtTbiriSoTroTroSiD
1.000 1 1 0 1 30 0 0 -- 
  +-- Castalia       
--+                  
  +-- Diplodon_gratus **

Graf, 2002 [Publ 2651], fig. 2

cstiTtTbiriSoTroTroSiD
1.000 1 1 0 1 17 0 0 -- 
  +-- Diplodon_chilensis **
--+                     
  +-- Castalia

Hoeh et al., 2002 [Publ 2653], fig. 2

cstiTtTbiriSoTroTroSiD
1.000 1 1 0 1 30 0 0 -- 
  +-- Castalia       
--+                  
  +-- Diplodon_gratus **

Roe & Hoeh, 2003 [Publ 2655], fig. 4f2

cstiTtTbiriSoTroTroSiD
1.000 1 1 0 1 30 0 0 -- 
  +-- Echyridella    
  |                  
--+-- Lortiella      
  |                  
  +-- Diplodon_gratus **

Roe & Hoeh, 2003 [Publ 2655], fig. 4f3

cstiTtTbiriSoTroTroSiD
1.000 1 1 0 1 30 0 0 -- 
  +-- Castalia       
--+                  
  +-- Diplodon_gratus **

Baker et al., 2003 [Publ 2690], fig. 5

cstiTtTbiriSoTroTroSiD
1.000 1 1 0 1 7 0 0 -- 
  +-- Hyridella      
--+                  
  +-- Diplodon_gratus **

Baker et al., 2004 [Publ 2685], fig. 2-3

cstiTtTbiriSoTroTroSiD
1.000 1 1 0 1 8 0 0 -- 
  +-- Hyridella      
--+                  
  +-- Diplodon_gratus **

Walker et al., 2006 [Publ 2666], fig. 6

cstiTtTbiriSoTroTroSiD
1.000 1 1 0 1 35 0 0 -- 
  +----------------- Castalia           
  |                                     
  +----------------- Diplodon_gratus **    
--+                                     
  |  +-------------- Hyridella_depressa 
  |  |                                  
  |  +-------------- Hyridella_australis
  +--+                                  
     |  +----------- Echyridella        
     |  |                               
     |  |        +-- Velesunio_ambiguus 
     +--+  +-----+                      
        |  |     +-- Velesunio__3       
        |  |                            
        +--+  +----- Velesunio__2       
           |  |                         
           |  |  +-- Alathyria          
           +--+--+                      
              |  +-- Velesunio__1       
              |                         
              |  +-- Velesunio_angasi   
              +--+                      
                 +-- Lortiella

Santos-Neto et al., 2016 [Publ 3739], fig. 3_5

cstiTtTbiriSoTroTroSiD
1.000 1 1 0 1 6 0 0 -- 
  +-------------- Diplodon_suavidicus **
  |                                  
--+           +-- Triplodon          
  |  +--------+                      
  |  |        +-- Prisodon           
  +--+                               
     |  +-------- Callonaia          
     +--+                            
        |  +----- Castalia_ambigua__2
        +--+                         
           |  +-- Castalia_ambigua__1
           +--+                      
              +-- Castaliella

Guerra et al., 2019 [Publ 4168], fig. 1

cstiTtTbiriSoTroTroSiD
1.000 1 1 0 1 40 0 0 -- 
  +----- Diplodon_suavidicus **
--+                         
  |  +-- Castalia           
  +--+                      
     +-- Prisodon

Guerra et al., 2019 [Publ 4168], fig. 2

cstiTtTbiriSoTroTroSiD
1.000 1 1 0 1 40 0 0 -- 
  +----- Diplodon_suavidicus **
--+                         
  |  +-- Castalia           
  +--+                      
     +-- Prisodon

Campbell & Lydeard, 2026 [Publ 4810], fig. 3_5

cstiTtTbiriSoTroTroSiD
1.000 1 1 0 1 139 0 0 -- 
  +----- Diplodon_suavidicus **
--+                         
  |  +-- Castalia           
  +--+                      
     +-- Prisodon