Fig. 6 in New taxa, records, and data for vesicomyid bivalves from Cenozoic strata of the North Pacific region

Fig. 6. The vesicomyid bivalve Pliocardia? guthrieorum sp. nov., from the Oligocene seep deposits at UWMB loc. B7452, Lincoln Creek Formation, western Washington State, USA. A. Paratype, NRM Mo 204779, large specimen showing outline, inflation, and ligament; left valve (A1) and dorsal (A2) views. B. Paratype, NRM Mo 204784, showing outline, inflation, and anterior adductor muscle scar; left valve (B1) and dorsal (B2) views. C. Paratype, NRM Mo 204780, small, elongate specimen; right valve (C1) and dorsal (C2) views; digital sections through the hinge area, with our interpretation of the hinge teeth indicated (C3, C4). D. Paratype, NRM Mo 204782, showing ligament. E. Holotype, NRM Mo 204785, showing inflation (E1) and both adductor muscle scars and the pallial line in the RV (E2). F. Paratype, NRM Mo 204781, large specimen with particularly large and blunt umbo. G. Paratype, NRM Mo 204814, small specimen in dorsal view, showing inflation and lunular incision (G1) and the lack of an escutcheon (G2). H. Paratype, NRM Mo 204786, showing lunular incision. I. Paratype, NRM Mo 204813, showing lunular incision. Abbreviation: pams, posterior adductor muscle scar.