Saxon, R., C.R. Randklev, K.J. Roe, C.R. Robertson & C.H. Smith. 2023. A phylogeographic assessment redefines the distributions of Truncilla species (Bivalvia: Unionidae) in Texas. Journal of Molluscan Studies 89. eyad015 (12 pp.). Available electronically.
(click the figure number to see the cladogram)
+----------- Ellipsaria_lineolata
--+
| +-------- Truncilla_truncata
+--+
| +----- Truncilla_macrodon
+--+
| +-- Truncilla_cognata
+--+
+-- Truncilla_donaciformis