Archosaurs
Newly named basal archosauromorphs Name Novelty Status Authors Age Unit Location Notes Images Epicampodon Junior synonymRichard Lydekker Early TriassicJunior objective synonym of Ankistrodon, a member of Proterosuchidae.
Newly named non-avian dinosaurs
Name Status Authors Age Unit Location NotesImages Anchisaurus ValidOthniel Charles MarshEarly JurassicPortland Formation ( and )An anchisaurid, a basal member of Anchisauria. Camptosaurus Valid Othniel Charles MarshLate Jurassic (Kimmeridgian-Tithonian)Morrison Formation
( and )A camptosaurid; a member of Ankylopollexia. Neosodon Valid de la MoussayeLate Jurassic (Kimmeridgian-Tithonian)Unnamed unit A possible member of Turiasauria
Synapsids NameAuthorsAgeLocationNotesImagesCyonasuaAmeghino5 Million years ago It was one of the first placental mammals that came from North America.
References