†Gemma magna majorina Gardner 1943 (venus clam)
Bivalvia - Cardiida - Veneridae
Full reference: J. A. Gardner. 1943. Mollusca from the Miocene and Lower Pliocene of Virginia and North Carolina. Part 1. Pelecypoda. United States Geological Survey Professional Paper 199(A):1-178
Belongs to Gemma magna according to J. A. Gardner 1943
Sister taxa: Gemma magna insulcata, Gemma magna striata, Gemma magna virginiana
Type specimen: USNM 325566, a shell
Ecology: facultatively mobile infaunal suspension feeder
Distribution: there are no occurrences of Gemma magna majorina in the database