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
Gastropoda
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
Nautiloidea
Ammonoidea
Sphenodiscus lobatus (Tuomey)
Pachydiscus (Neodesmoceras) sp.
Crustacea
Chondrichthyes
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. serrulalus Fowler
Paralbula casei Estes
Chelonia
Osteopygis emarginatus Cope
Taphrospys sulcatus (Leidy)
Dollochelys atlantica (Zangerl)
Crocodilia
Hyposaurus rogersii Owen
Thoracosaurus sp.
Bottosaurus harlani Meyer
Diplocynodon sp.
Lacertilia
Plioplatecarpus sp.