Plazzi, F. & M. Passamonti. 2010. Towards a molecular phylogeny of Mollusks: bivalves’ early evolution as revealed by mitochondrial genes. Molecular Phylogenetics and Evolution 57: 641-657. Available electronically.
(click the figure number to see the cladogram)
+-- Pronodularia_japanensis --+ +-- Lampsilis_ornata
+----- Sinanodonta_woodiana
|
--+----- Lampsilis_ornata
|
| +-- Sinohyriopsis_cumingii
+--+
+-- Pronodularia_japanensis