Cyr, F., A. Paquet, A.L. Martel & B. Angers. 2007. Cryptic lineages and hybridization in freshwater mussels of the genus Pyganodon (Unionidae) in northeastern North America. Canadian Journal of Zoology 85: 1216-1227. Available electronically.
(click the figure number to see the cladogram)
+----------- Lampsilis_ornata
|
--+ +-------- Pyganodon_grandis
| |
+--+-------- Pyganodon__2
|
| +----- Pyganodon__1
+--+
| +-- Pyganodon_cataracta
+--+
+-- Pyganodon_fragilis
+----------- Anodonta_nuttalliana
|
--+ +-- Pyganodon_grandis
| +-----+
| | +-- Pyganodon__1
+--+
| +----- Pyganodon__2
+--+
| +-- Pyganodon_cataracta
+--+
+-- Pyganodon_fragilis
+----------- Pseudanodonta_complanata
|
| +-- Pyganodon_grandis
--+ +-----+
| | +-- Pyganodon__1
| |
+--+ +----- Pyganodon__3
| |
| | +-- Pyganodon_cataracta__1
+--+ |
| +-- Pyganodon_fragilis__1
| |
+--+-- Pyganodon__2
|
+-- Pyganodon_cataracta__2
|
+-- Pyganodon_fragilis__2
+-------- Pyganodon_grandis
|
--+-------- Pyganodon__2
|
| +----- Pyganodon__1
+--+
| +-- Pyganodon_cataracta
+--+
+-- Pyganodon_fragilis