Full reference: C. W. Cooke. 1919. Tertiary mollusks from the Leeward Islands and Cuba. Contributions to the geology and paleontology of the West Indies. Carnegie Institution of Washington 105-156
Sister taxon: Margarita triassica
Type specimen: UNSM 167028, a shell. Its type locality is USNM 3652, 5312, which is in a Miocene coastal tar in Cuba.
Average measurements (in mm): shell 10.5 x 11.4