Gastropoda1–26: 1 Cerithium atratum 1a ventral view 1b dorsal view, scale bar 1 mm 2 Alaba incerta 2a ventral view 2b dorsal view, scale bar 0.25 mm 3 Finella sp. 3a ventral view 3b dorsal view, scale bar 1 mm 4 Sansonia tuberculata 4a ventral view 4b dorsal view, scale bar 1 mm 5 Hipponix sp. 5a ventral view 5b dorsal view, scale bar 0.1 mm 6 Iniforis turristhomae 6a ventral view 6b dorsal view, scale bar 1 mm 7 Metaxia rugulosa 7a ventral view 7b dorsal view, scale bar 0.5 mm 8 Cerithiopsis sp. 8a ventral view 8b dorsal view, scale bar 1 mm 9Cerithiopsis cf. iuxtafuniculata9a ventral view 9b dorsal view, scale bar 1 mm 10Vermetidaeincertae sedis irregularis scale bar 1 mm 11 Dendropoma corrodens scale bar 1 mm 12 Vermetid sp. C, ventral view, scale bar 0.25 mm 13 Petaloconchus mcgintyi, ventral view, scale bar 0.25 mm 14 Thylacodes sp. scale bar 1 mm 15 Simulamerelina caribaea 15a ventral view 15b dorsal view, scale bar 1 mm 16 Schwartziella fischeri 16a ventral view 16b dorsal view, scale bar 1 mm 17 Zebina sp. 2 17a ventral view 17b dorsal view, scale bar 1 mm 18 Zebina sp. 2 18a ventral view 18b dorsal view, scale bar 0.5 mm 19 Truncatella sp. 19a ventral view 19b dorsal view, scale bar 0.5 mm 20 Caecum circumvolutum, lateral view, scale bar 0.2 mm 21 Caecum donmoorei 21a stage 1, lateral view, scale bar 0.2 mm 21b adult, lateral view, scale bar 0.2 mm 22 Caecum johnsoni, lateral view, scale bar 0.2 mm 23 Caecum pulchellum, lateral view, scale bar 0.2 mm 24 Caecum textile, lateral view, scale bar 0.2 mm 25 Caecum sp. B, lateral view, scale bar 0.2 mm 26 Meioceras nitidum, lateral view, scale bar 0.2 mm.