Dinosaurs Taxon Novelty Status Author(s) Age Unit Location Notes Images Aublysodon lateralis Sp. nov. Nomen dubium Cope Campanian Judith River Formation A species of Aublysodon Chondrosteosaurus gigas Gen. et sp. nov. Nomen dubium Owen Barremian Wessex Formation A sauropod Diclonius pentagonus Gen. et sp. nov. Nomen dubium Cope Campanian Judith River Formation A hadrosaurid Diclonius calamarius Sp. nov. Nomen dubium Cope Campanian Judith River Formation A species of Diclonius Diclonius perangulatus Sp. nov. Nomen dubium Cope Campanian Judith River Formation A species of Diclonius Dysganus encaustus Gen. et sp. nov. Nomen dubium Cope Campanian Judith River Formation A ceratopsid Dysganus bicarinatus Sp. nov. Nomen dubium Cope Campanian Judith River Formation A species of Dysganus Dysganus haydenianus Sp. nov. Nomen dubium Cope Campanian Judith River Formation A species of Dysganus Dysganus peiganus Sp. nov. Nomen dubium Cope Campanian Judith River Formation A species of Dysganus Laelaps explanatus Sp. nov. Nomen dubium Cope Campanian Judith River Formation A species of Laelaps Laelaps falculus Sp. nov. Nomen dubium Cope Campanian Judith River Formation A species of Laelaps Laelaps incrassatus Sp. nov. Nomen dubium Cope Campanian Judith River Formation A species of Laelaps Macrurosaurus semnus Gen. et sp. nov. Nomen dubium Seeley Albian Cambridge Greensand A sauropod Monoclonius crassus Gen. et sp. nov. Nomen dubium Cope Campanian Judith River Formation A ceratopsid Paronychodon lacustris Gen. et sp. nov. Nomen dubium Cope Campanian Judith River Formation A troodontid Zapsalis abradens Gen. et sp. nov. Nomen dubium Cope Campanian Judith River Formation A dromaeosaurid
Anapsids Newly named anapsids Name Status AuthorsLocation NotesImagesAnthodonSir Richard Owen A pareiasaur.PareiasaurusSir Richard Owen A pareiasaur
Plesiosaurs Newly named plesiosaurs Name Status Authors NotesPlesiosaurus longirostrisValidBlakeNow referred to Hauffiosaurus.Roger B. J. Benson, Hilary F. Ketchum, Leslie F. Noè and Marcela Gómez-Pérez (2011). "New information on Hauffiosaurus (Reptilia, Plesiosauria) based on a new species from the Alum Shale Member (Lower Toarcian: Lower Jurassic) of Yorkshire, UK". Palaeontology 54 (3): 547–571. doi:10.1111/j.1475-4983.2011.01044.x.Plesiosaurus propinquusJunior synonymBlakeA junior synonym of Rhomaleosaurus zetlandicus.P. Vincent and A. S. Smith. 2009. A redescription of Plesiosaurus propinquus Tate & Blake, 1876 (Reptilia, Plesiosauria), from the Lower Jurassic (Toarcian) of Yorkshire, England. Proceedings of the Yorkshire Geological Society 57(3-4):133-142UronautesValidCope
Pterosaurs New taxa Name Status AuthorsLocation NotesImagesNyctosaurusValidMarsh ()A Pterosaur with an antenna-like crest .PteranodonValidMarsh
An Crested Pterosaur, Erroneously known as "Pterodactyl"
Synapsids Non-mammalian
Name Status Authors Age Location NotesImagesCistecephalusValidOwen255 Millions of years ago. Box-Headed animalEndothiodonValidOwen257 Millions of years ago.
GorgonopsValidOwen257 Millions of years ago. A Gorgonopsian.ScaloposaurusValidOwen251 Millions of years ago. TapinocephalusValidOwen261 Millions of years ago. A Dome-headed Dinocephalian.TheriognathusValidOwen255 Millions of years ago. TitanosuchusValidOwen261 Millions of years ago. Titanic crocodile.
See also
References