The Freshwater Mussels (Unionoida) of the World (and other less consequential bivalves)
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Bivalvia | Unionida | Unionoidea | Unionidae | Ambleminae | Popenaiadini genus Psoronaias Crosse & Fischer, 1894: cladomics 5 Recent valid species (5 total species) Cladomics Summarynumber of species = 5 (5 total) analyzed in 10 cladograms in 7 publications maximum number of terminals in an analysis =
2 (mean = 1.5, median = 1.5) Basic Monophylynumber of cladograms that test basic monophyly
(i.e., more than 1 included species) = 5 maximum number of included terminals = 2, (mean =
2 median = 2) proportion of cladograms that support basic monophyly
= 1
Pairwise Cladogram ClusteringThe graphs below depict in two dimensions all pair-wise ingroup distances within the cladome. See the Cladmoics FARQ for more information.
Inoue et al., 2020 [Publ 4128], fig. 2 ** Top Monophyly Cladogram ** | iT | tT | bi | riS | oT | roT | roS | iD | | 2 | 2 | 0 | 7 | 21 | 3 | 1 | -- |
+----- Popenaias
|
| +-- Psoronaias_crocodilorum__1 **
| |
--+ +-- Psoronaias_crocodilorum__2 **
| |
| +-- Psoronaias_crocodilorum__3 **
| |
+--+-- Psoronaias_guatemalensis__1 **
|
+-- Psoronaias_guatemalensis__2 **
|
+-- Psoronaias_crocodilorum__4 **
|
+-- Psoronaias_crocodilorum__5 **
MartÃnez et al., 2026 [Publ 4820], fig. 2 ** Top Sister-Group Cladogram ** | iT | tT | bi | riS | oT | roT | roS | iD | | 1 | 1 | 0 | 1 | 15 | 5 | 2 | -- |
+-------- Nephronaias_hjalmarsoni
--+
| +----- Psoronaias_guatemalensis **
+--+
| +-- Nephronaias_goascoranensis
+--+
+-- Nephronaias_tempisquensis
Freeman et al., 2025 [Publ 4443], fig. 2 | iT | tT | bi | riS | oT | roT | roS | iD | | 2 | 2 | 0 | 3 | 4 | 2 | 2 | -- |
+----------- Popenaias
--+
| +-------- Nephronaias
+--+
| +----- Psoronaias_crocodilorum__2 **
+--+
| +-- Psoronaias_crocodilorum__1 **
+--+
+-- Psoronaias_guatemalensis **
Inoue et al., 2020 [Publ 4128], fig. 3 | iT | tT | bi | riS | oT | roT | roS | iD | | 2 | 2 | 0 | 6 | 20 | 3 | 1 | -- |
+-------------- Popenaias
|
--+ +----------- Psoronaias_crocodilorum__4 **
| |
+--+ +-- Psoronaias_crocodilorum__1 **
| +-----+
| | +-- Psoronaias_guatemalensis__1 **
+--+
| +----- Psoronaias_crocodilorum__3 **
+--+
| +-- Psoronaias_guatemalensis__2 **
+--+
+-- Psoronaias_crocodilorum__2 **
Campbell & Lydeard, 2026 [Publ 4810], fig. 6-14 | iT | tT | bi | riS | oT | roT | roS | iD | | 2 | 2 | 0 | 5 | 630 | 4 | 2 | -- |
+-------- Nephronaias
|
--+ +----- Psoronaias_crocodilorum__4 **
| |
+--+ +-- Psoronaias_guatemalensis **
| |
| +-- Psoronaias_crocodilorum__1 **
+--+
+-- Psoronaias_crocodilorum__2 **
|
+-- Psoronaias_crocodilorum__3 **
Pfeiffer et al., 2019 [Publ 3866], fig. 1 | iT | tT | bi | riS | oT | roT | roS | iD | | 2 | 2 | 0 | 3 | 29 | 1 | 1 | -- |
+-------- Popenaias
--+
| +----- Psoronaias_guatemalensis__2 **
+--+
| +-- Psoronaias_crocodilorum **
+--+
+-- Psoronaias_guatemalensis__1 **
Smith et al., 2020 [Publ 4129], fig. 2-3 | iT | tT | bi | riS | oT | roT | roS | iD | | 1 | 1 | 0 | 1 | 27 | 1 | 1 | -- |
+-- Popenaias
--+
+-- Psoronaias_crocodilorum **
Pfeiffer et al., 2019 [Publ 3937], fig. 4-5 | iT | tT | bi | riS | oT | roT | roS | iD | | 1 | 1 | 0 | 1 | 56 | 1 | 1 | -- |
+-- Psoronaias_crocodilorum **
--+
+-- Popenaias
Pfeiffer et al., 2019 [Publ 3937], fig. 6 | iT | tT | bi | riS | oT | roT | roS | iD | | 1 | 1 | 0 | 1 | 56 | 1 | 1 | -- |
+-- Psoronaias_crocodilorum **
--+
+-- Popenaias
Smith et al., 2020 [Publ 4129], fig. 1 | iT | tT | bi | riS | oT | roT | roS | iD | | 1 | 1 | 0 | 1 | 27 | 1 | 1 | -- |
+-- Popenaias
--+
+-- Psoronaias_crocodilorum **
|