Arthropods Newly named crustaceans Name Novelty Status Authors Age Unit Location Notes ImagesArchaeolepas decoraSp novJr synonymHarbortEarly Cretaceous (Valanginian)A barnacle, moved to the genus Loriolepas in 2016.Astacus antiquusSp novJr synonymHarbortEarly CretaceousBückeberg FormationMoved to the genus Protastacus in 1983.Eryma sulcatumSp novValidHarbortAn erymid.Hoploparia asperaSp novValidHarbortA lobster.Meyeria rapaxSp novJr synonymHarbortEarly CretaceousMoved to the genus Atherfieldastacus in 2017.
Archosauromorphs Newly named dinosaurs Data courtesy of George Olshevsky's dinosaur genera list.
Name Status Authors Age Unit Location NotesImages AlbertosaurusOsborn, H.F. 1905. Tyrannosaurus and other Cretaceous carnovorous dinosaurs. Bull. Amer. Mus. Nat. Hist. 21: pp. 259-265. Valid taxonHenry Fairfield OsbornLate Cretaceous (Edmontonian)Horseshoe Canyon Formation (An albertosaurine tyrannosaurid. "Diceratops"Hatcher, J.B. 1905. Two new Ceratopsia from the Laramie of Converse County, Wyoming. Amer. J. Sci. (ser. 4) 20: pp. 413-419. vide Lull, R.S. 1905. Restoration of the horned dinosaur Diceratops. Amer. J. Sci. (ser. 4) 20: pp. 420-422.Preoccupied.Lull vide: HatcherLate Cretaceous (Lancian) Has been considered a member of Triceratops, but recent work has indicated it deserved its own genus after all. In 2008 it was renamed Diceratus because Diceratops was preoccupied by a hymenopteran insect Foerster, 1868. "Dynamosaurus" Junior synonym. Henry Fairfield OsbornLate Cretaceous (Lancian)Lance FormationSame as Tyrannosaurus, this name was rejected because Tyrannosaurus was mentioned earlier in the paper. StegopeltaWilliston, S.W. 1905. A new armored dinosaur from the Upper Cretaceous of Wyoming. Science 22 (564): pp. 503-504. Valid taxon WillistonMiddle Cretaceous (Cenomanian)Frontier Formation ()A nodosaurid. TyrannosaurusValid taxon Henry Fairfield OsbornLate Cretaceous (Lancian)Lance Formation Hell Creek Formation Scollard Formation North Horn Formation McRae Formation Frenchman Formation Denver Formation Laramie Formation ()
(, , , , and )Tyrannosaurus is the largest recognized tyrannosauroid and the most famous dinosaur of all time.
Other archosauromorphs Name Status Authors Age Unit Location Notes Images "Procerosaurus" Preoccupied. FritschLate Cretaceous (Turonian)Preoccupied by Procerosaurus von Huene, 1902; later renamed Ponerosteus Olshevsky, 2000. Either a bird or pterosaur.Fejfar, O., Košťák, M., Kvaček, J., Mazuch, M., and Moučka, M. 2005. First Cenomanian dinosaur from Central Europe (Czech Republic). Acta Palaeontologica Polonica 50 (2): 295–300.
Synapsids Non-mammalian
Name Status Authors Age Unit Location NotesImagesArchaeosuchusNomen dubiumBroomMiddle PermianA member of Dinocephalia.Melinodonjunior synonymBroomMiddle Triassic (late Olenekian to Anisian)Burgersdorp Formation Sesamodonjunior synonymBroomMiddle Triassic (late Olenekian to Anisian)Burgersdorp Formation
Other reptiles Name Status Authors Age Unit Location Notes Images AlbisaurusFritsch, A. 1905. Synopsis der Saurier der Bohmischen Kreideformation. Sitz. Konig. Bohm. Ges. Wiss., II. Classe. (7 pages) Nomen dubium. FritschLate Cretaceous (Turonian)Jizera FormationMay have been a misidentified marine reptile.
References