Patterson, L.N., S.R. Geda & N.A. Johnson. 2021. Rediscovery and genetic confirmation of the Threeridge Mussel, Amblema plicata (Say, 1817) (Bivalvia, Unionidae), in the Choctawhatchee River, Florida, USA. Check List 17(3): 783-790. Available electronically.
(click the figure number to see the cladogram)
+-------- Villosa_villosa
--+
| +----- Amblema_neislerii
+--+
| +-- Amblema_plicata
+--+
+-- Amblema_elliottii