Appendix
The nonavian megafauna of the main fossiliferous layer (Basal Hornerstown Formation), at the Inversand Company marl pit, Sewell, Gloucester County, New Jersey is listed below. Also found in the deposits were numerous coprolites of sharks and crocodilians, some amber, phosphatized wood, and a few seeds. Voucher specimens are in the collections of the New Jersey State Museum, Academy of Natural Sciences of Philadelphia, and Yale University (Princeton University collections).
Brachiopoda
Terebratulina atlantica (Morton)
Gastropoda
Gyrodes abyssinus (Morton)
Acteon cretacea Gabb
Anchura abrupta Conrad
Turbinella parva Gabb
Lunatia halli Gabb
Pyropsis trochiformis (Tuomey)
Volutoderma ovata Whitfield
Turbinella subconica Gabb
Turritella vertebroides Morton
Pelecypoda
Cardium tenuistriatum Whitfield Glycymeris mortoni (Conrad) Gryphaea convexa (Say) Gervilliopsis ensiformis (Conrad) Panopea decisa Conrad Veniella conradi Morton Crassatella vadosa Morton Cucullaea vulgaris Morton Lithophaga ripleyana Gabb Xylophagella irregularis (Gabb) Nuculana stephensoni Richards Etea delawarensis (Gabb)
Nautiloidea
Eutrephoceras dekayi (Morton)
Ammonoidea
Baculites ovatus Say
Sphenodiscus lobatus (Tuomey)
Pachydiscus (Neodesmoceras) sp.
Crustacea
cf. Hoploparia sp.
Chondrichthyes
Lamma appendiculata (Agassiz)
Odontaspis cuspidata (Agassiz)
Squalicorax pristodontus (Morton)
Hexanchus sp.
Edaphodon stenobryus (Cope)
Edaphodon mirificus Leidy
Ischyodus cf. I. thurmanni Pictet and Campiche
Squatina sp.
Myliobatis cf. M. leidyi Hay
Ischyrhiza mira Leidy
Rhinoptera sp.
cf. Rhombodus levis Cappetta and Case
Osteichthyes
Enchodus cf. E. ferox Leidy
Enchodus cf. E. serrulalus Fowler
Paralbula casei Estes
Chelonia
Adocus beatus Leidy
Osteopygis emarginatus Cope
Taphrospys sulcatus (Leidy)
Dollochelys atlantica (Zangerl)
Crocodilia
cf. Procaimanoidea sp.
Hyposaurus rogersii Owen
Thoracosaurus sp.
Bottosaurus harlani Meyer
Diplocynodon sp.
Lacertilia
Mosasaurus sp.
Plioplatecarpus sp.