Archosauromorphs Newly named protorosaurs Name Status Authors Age Unit Location Notes Images GwyneddosaurusBock, W. 1945. A new small Reptile from the Triassic of Pennsylvania. Notulae Naturae 154: pp. 1-8. Possible synonym of Tanytrachelos BockLate Triassic (Carnian)Lockatong FormationA tanystropheid.
Dinosaurs NameNoveltyStatusAuthorsAgeType localityLocationNotesImages Neosaurus missouriensis Gen. et sp. nov. Preoccupied Gilmore Maastrichtian Ripley Formation Preoccupied by Neosaurus Nopsca, 1923 and renamed Parrosaurus Parrosaurus Gen. nov. Nomen dubium Gilmore Maastrichtian Ripley Formation A new genus name for Neosaurus missouriensis Stegoceras lambei Sp. nov. Valid Sternberg Campanian Oldman Formation A species of Stegoceras later named Colepiocephale lambei
References