Bivalvia | Unionida | Hyrioidea | Hyriidae | Hyriinae | Rhipidodontini

genus Guyanhyrida Prié & Lopes-Lima in Prié et al., 2026: cladomics

2 Recent valid species (2 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 = 2 (2 total)
analyzed in 15 cladograms in 9 publications
maximum number of terminals in an analysis = 2 (mean = 1.07, median = 1)

Basic Monophyly

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

Cladograms

Prié et al., 2026 [Publ 4844], fig. 2

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

cstiTtTbiriSoTroTroSiD
0.750 2 2 0 2 21 4 2 ** 
           +-- Guyanhyrida_voltzi **       
  +--------+                            
  |        +-- Guyanhyrida_demeraraensis **
  |                                     
  |     +----- Iridea                   
--+  +--+                               
  |  |  |  +-- Prisodon                 
  |  |  +--+                            
  |  |     +-- Triplodon                
  +--+                                  
     |     +-- Castalia_cordata         
     |  +--+                            
     |  |  +-- Callonaia                
     +--+                               
        |  +-- Castalia_ambigua         
        +--+                            
           +-- Castaliella

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

cstiTtTbiriSoTroTroSiD
0.667 1 1 0 1 20 2 1 0.0 
  +-------------------- Guyanhyrida_demeraraensis **
  |                                              
--+                 +-- Triplodon                
  |  +--------------+                            
  |  |              +-- Prisodon                 
  +--+                                           
     |  +-------------- Castalia_stevensi        
     |  |                                        
     +--+           +-- Callonaia                
        |  +--------+                            
        |  |        +-- Castalia_ambigua__1      
        +--+                                     
           |  +-------- Castalia_ambigua__4      
           +--+                                  
              |  +----- Castalia_ambigua__2      
              +--+                               
                 |  +-- Castaliella              
                 +--+                            
                    +-- Castalia_ambigua__3

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

cstiTtTbiriSoTroTroSiD
0.667 1 1 0 1 20 2 1 0.0 
  +----------------------- Guyanhyrida_demeraraensis **
  |                                                 
--+                    +-- Triplodon                
  |  +-----------------+                            
  |  |                 +-- Prisodon                 
  +--+                                              
     |  +----------------- Castalia_ambigua__4      
     +--+                                           
        |  +-------------- Callonaia                
        +--+                                        
           |  +----------- Castalia_ambigua__3      
           +--+                                     
              |  +-------- Castalia_stevensi        
              +--+                                  
                 |  +----- Castalia_ambigua__2      
                 +--+                               
                    |  +-- Castaliella              
                    +--+                            
                       +-- Castalia_ambigua__1

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

cstiTtTbiriSoTroTroSiD
0.667 1 1 0 1 632 3 1 0.0 
  +----------------------- Guyanhyrida_demeraraensis **
  |                                                 
--+                    +-- Triplodon                
  |  +-----------------+                            
  |  |                 +-- Prisodon                 
  +--+                                              
     |  +----------------- Castalia_ambigua__4      
     |  |                                           
     +--+  +-------------- Callonaia                
        |  |                                        
        +--+  +----------- Castalia_stevensi        
           |  |                                     
           +--+  +-------- Castalia_ambigua__3      
              |  |                                  
              +--+     +-- Castalia_ambigua__1      
                 |  +--+                            
                 |  |  +-- Castaliella              
                 +--+                               
                    |  +-- Castalia_ambigua__2      
                    +--+                            
                       +-- Castalia

Graf et al., 2015 [Publ 3619], fig. 1

cstiTtTbiriSoTroTroSiD
1.000 1 1 0 1 19 0 0 0.0 
  +----- Guyanhyrida_demeraraensis **
--+                               
  |  +-- Triplodon                
  +--+                            
     +-- Castalia

Bolotov et al., 2016 [Publ 3743], fig. 2

cstiTtTbiriSoTroTroSiD
1.000 1 1 0 1 29 0 0 0.0 
  +----- Guyanhyrida_demeraraensis **
--+                               
  |  +-- Triplodon                
  +--+                            
     +-- Castalia

Bolotov et al., 2016 [Publ 3743], fig. 4

cstiTtTbiriSoTroTroSiD
1.000 1 1 0 1 29 0 0 0.0 
  +----- Guyanhyrida_demeraraensis **
--+                               
  |  +-- Triplodon                
  +--+                            
     +-- Castalia

Bolotov et al., 2017 [Publ 3761], fig. S1

cstiTtTbiriSoTroTroSiD
1.000 1 1 0 1 138 0 0 0.0 
  +----- Guyanhyrida_demeraraensis **
--+                               
  |  +-- Castalia                 
  +--+                            
     +-- Triplodon

Bolotov et al., 2017 [Publ 3761], fig. S2

cstiTtTbiriSoTroTroSiD
1.000 1 1 0 1 138 0 0 0.0 
  +----- Guyanhyrida_demeraraensis **
--+                               
  |  +-- Castalia                 
  +--+                            
     +-- Triplodon

Konopleva et al., 2017 [Publ 3807], fig. 6

cstiTtTbiriSoTroTroSiD
1.000 1 1 0 1 30 0 0 0.0 
  +----- Guyanhyrida_demeraraensis **
--+                               
  |  +-- Triplodon                
  +--+                            
     +-- Castalia

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

cstiTtTbiriSoTroTroSiD
1.000 1 1 0 1 200 0 0 0.0 
  +----- Guyanhyrida_demeraraensis **
--+                               
  |  +-- Castalia                 
  +--+                            
     +-- Triplodon

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

cstiTtTbiriSoTroTroSiD
1.000 1 1 0 1 198 0 0 0.0 
  +----- Guyanhyrida_demeraraensis **
--+                               
  |  +-- Castalia                 
  +--+                            
     +-- Triplodon

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

cstiTtTbiriSoTroTroSiD
1.000 1 1 0 1 200 0 0 0.0 
  +----- Guyanhyrida_demeraraensis **
--+                               
  |  +-- Castalia                 
  +--+                            
     +-- Triplodon

Wu et al., 2021 [Publ 4366], fig. 2_I

cstiTtTbiriSoTroTroSiD
1.000 1 1 0 1 90 0 0 0.0 
  +-- Castalia                 
--+                            
  +-- Guyanhyrida_demeraraensis **

Wu et al., 2021 [Publ 4366], fig. 6

cstiTtTbiriSoTroTroSiD
1.000 1 1 0 1 90 0 0 0.0 
  +-- Guyanhyrida_demeraraensis **
--+                            
  +-- Castalia