Hypsibema (from Greek υψι/hypsi, "high", and βεμα/bema, "step", meaning "high step") is a dubious genus of hadrosaurid ornithopod from the Late Cretaceous (Campanian) of North Carolina.
History and discovery[]
The type species of Hypsibema, H. crassicauda, was described by Edward Drinker Cope for USNM 7189, remains including a caudal vertebra, metatarsal, and limb fragments from the Black Creek Group of North Carolina.[1] Baird and Horner (1979) made the caudal vertebrae included under USNM 7189 as the lectotype of H. crassicauda, and the limb fragments were recognized as belonging to a tyrannosauroid.[2] Today, Hypsibema is seen as a nomen dubium. The hadrosaur Parrosaurus (originally named Neosaurus) was referred to Hypsibema by Baird and Horner (1979), but new material unearthed at the type locality of P. missouriensis shows that Parrosaurus is a distinct genus in its own right.[2][3]
References[]
- ^ E.D. Cope, 1869, "Remarks on Eschrichtius polyporus, Hypsibema crassicauda, Hadrosaurus tripos, and Polydectes biturgidus", Proceedings of the Academy of Natural Sciences of Philadelphia 21: 191-192
- ^ a b D. Baird and J. R. Horner, 1979, "Cretaceous dinosaurs of North Carolina", Brimleyana 2: 1-28.
- ^ Brownstein, CD. 2018. The biogeography and ecology of the Cretaceous non-avian dinosaurs of Appalachia. Palaeontologia Electronica 21.1.5A: 1-56.