†Turritella plebeia carinata Gardner 1943 (turret shell)
Gastropoda - Sorbeoconcha - Turritellidae
Full reference: J. A. Gardner. 1943. Mollusca from the Miocene and Lower Pliocene of Virginia and North Carolina. United States Geological Survey Professional Paper 199(A)
Belongs to Turritella plebeia according to L. W. Ward 1992
Sister taxon: Turritella plebeia plebeia
Type specimen: USNM 325453, a shell
Ecology: facultatively mobile epifaunal suspension feeder