†Cimitaria Hall and Whitfield 1869 (clam)
Bivalvia - Cardiidia - Grammysiidae
Full reference: J. Hall and R. P. Whitfield. 1869. Preliminary notice of the lamellibranchiate shells of the upper Helderberg, Hamilton and Chemung groups, with others from the Waverly sandstones, part 2. 1-80
Parent taxon: Grammysiidae according to J. Kříž 2008
Sister taxa: Asketomorpha, Cardiomorpha, Cercomyopsis, Cuneamya, Cuneamyinae, Ectogrammysia, Fuchsella, Glossites, Grammysia, Grammysiinae, Grammysioidea, Prothyris, Sedgwickia, Solenomorpha
Subtaxa: Cimitaria liscina
Ecology: facultatively mobile infaunal suspension feeder