Fig. 36

Right quadrates. Scale bars = 1 mm. a E. paucicarinata SDNHM 45100 in posterior view. b A. campbelli UTA 35952 in posterior view. c P. apodus YPM 12870 in posterior view. d E. paucicarinata SDNHM 45100 in ventral view. e A. campbelli UTA 35952 in ventral view. am.s anteromedial surface, co conch