Dinosaurs Richard Owen publishes a monograph on Wealden and Purbeck reptiles, classifying Scelidosaurus, Iguanodon and Echinodon in the new dinosaur clade Prionodontia.
New taxa Taxon Novelty Status Author(s) Age Unit Location Notes Images Agathaumas milo Sp. nov. Nomen dubium Cope Maastrichtian Laramie Formation Described as a synonym of Hadrosaurus occidentalis Cionodon Gen. et sp. nov. Nomen dubium Cope Maastrichtian Laramie Formation A hadrosaurid. Misspelled as Cinodon in original publication due to proofreader Craterosaurus Gen. et sp. nov. Nomen dubium Seeley Aptian Potton Sands A dubious stegosaur Hadrosaurus mirabilis Comb. nov. Nomen dubium Cope Campanian Judith River Formation A new combination for Trachodon mirabilis Hadrosaurus occidentalis Comb. nov. Nomen dubium Cope Maastrichtian Lance Formation A new combination for Thespesius occidentalis Ischyrosaurus manseli Gen. nov. Preoccupied Hulke Kimmeridgian Kimmeridge Clay Formation Preoccupied by Edward Drinker Cope, 1869. Later named Ornithopsis manseli Morinosaurus Gen. et sp. nov Nomen dubium Sauvage Kimmeridgian Boulogne-sur-Mer A dubious sauropod Polyonax Gen. et sp. nov. Nomen dubium Cope Maastrichtian Laramie Formation A ceratopsid
Ichthyosaurs New taxa Name Status Authors Age Unit Location Notes Images Ophthalmosaurus ValidSeeleyMiddle Jurassic (Callovian)Oxford Clay FormationAn ophthalmosaurid ichthyosaur.
Plesiosaurs New taxa Name Status Authors Age Unit Location Notes Images Colymbosaurus ValidSeeleyLate Jurassic (Kimmeridgian)Kimmeridge ClayA cryptoclidid, new genus for "Plesiosaurus" megadeirus Seeley, 1869 Eretmosaurus ValidSeeleyEarly Jurassic (Hettangian-Sinemurian)Blue LiasA member of Microcleididae; new genus for "Plesiosaurus" rugosus Owen, 1840. Mauisaurus Nomen dubiumHectorLate Cretaceous (late Campanian-Maastrichtian)Conway FormationAn elasmosaurid. Muraenosaurus ValidSeeleyMiddle Jurassic (Callovian)Oxford ClayA cryptoclidid.Rhomaleosaurus ValidSeeleyEarly Jurassic (Toarcian)Whitby Mudstone FormationA rhomaleosaurid; new genus for "Plesiosaurus" cramptoni Carte and Bailey, 1863
Pterosaurs Newly named pterosaurs
Name Status Authors Age Unit Location Notes Images Coloborhynchus ValidOwenEarly Cretaceous (Valanginian)Wadhurst Clay FormationA member of Ornithocheiridae. Criorhynchus Jr. synonymOwenJr. synonym of Ornithocheirus.
Squamates Newly named mosasaurs Name Status Authors Age Unit Location Notes ImagesTaniwhasaurusValidHectorLate CampanianConway Formation
A tylosaurine mosasaurid.
References