Mollusca Newly named bivalves Name Novelty Status Authors Age Unit Location Notes ImagesTellinomya similis.Sp novsynonym UlrichAshgillianUpper Richmond Group, Minnesota transferred to Similodonta in 1964 Tellinomya recurva.Sp novsynonym LamontAshgillianUpper Richmond Group, Minnesotatransferred to Similodonta in 1964

Dinosaurs New taxa Taxon Novelty Status Author(s) Age Unit Location Notes Images Claosaurus annectens Sp. nov. Valid Marsh Maastrichtian Laramie Formation A new species of Claosaurus later named Edmontosaurus annectens Claorhynchus trihedrus Gen. et sp. nov. Nomen dubium Cope Maastrichtian Laramie Formation Possible synonym of Triceratops Iguanodon hilli Sp. nov. Nomen dubium Newton Cenomanian Hertfordshire A species of Iguanodon Manospondylus gigas Gen. et sp. nov. Nomen dubium Cope Maastrichtian Laramie Formation Possible subjective synonym of Tyrannosaurus Ornithomimus sedens Sp. nov. Valid Marsh Maastrichtian Laramie Formation A species of Ornithomimus

Plesiosaurs New taxa

Name Status Authors Notes Cryptocleidus Valid Seeley

Synapsids Non-mammalian

Name Status Authors Discovery year Age Unit Location Notes ImagesDelphinognathusValidSeeleyDiopaeusGeikiaValidNewton

References