Fig. 13 in Mollusks from Miocene hydrocarbon-seep deposits in the Ilocos-Central Luzon Basin, Luzon Island, Philippines

Fig. 13. The vesicomyid bivalve Archivesica? sp. 1 from Upper Miocene seep deposits of the Amlang Formation in Pangasinan province, Luzon, Philippines. A. NRM Mo 192671, views on hinges of RV (A1) and LV (A2), cardinal teeth numbers indicated; and view on outer side of LV showing interior radial striations (A3). B. NRM Mo 192418, small, articulated specimen, in dorsal view showing absence of lunule or lunular incision (B1), and view on RV (B2). C. NRM Mo 192419, very small specimen showing pallial line and posterior adductor muscle scar. D. NRM Mo 192672, small, isolated LV. E. NRM Mo 192670, medium-sized, isolated RV showing internal radial striation.