Fig. 5 in A middle Eocene seep deposit with silicified fauna from the Humptulips Formation in western Washington State, USA

Fig. 5. Unidentified vesicomyid bivalve from the middle Eocene Satsop Weatherwax seep deposit, Washington State, USA. A. NRM Mo 185002; left valve of young specimen showing hinge disrupted by a crack (A1); close-up on hinge and dentition (A2). B. NRM Mo 185005; right valve of young specimen showing hinge and ligament nymph (B1); close-up on hinge and dentition (B2).