A New Rhynchosaur Taxon from the Popo Agie Formation, WY: Implications for a Northern Pangean Early-Late Triassic (Carnian) Fauna

A Basal Sauropodomorph (Dinosauria: Saurischia) from the Ischigualasto Formation (Triassic, Carnian) and the Early Evolution of Sauropodomorpha

BACKGROUND The earliest dinosaurs are from the early Late Triassic (Carnian) of South America. By the Carnian the main clades Saurischia and Ornithischia were already established, and the presence of the most primitive known sauropodomorph Saturnalia suggests also that Saurischia had already diverged into Theropoda and Sauropodomorpha. Knowledge of Carnian sauropodomorphs has been restricted to...

On the Validity and Phylogenetic Position of Eubrachiosaurus browni, a Kannemeyeriiform Dicynodont (Anomodontia) from Triassic North America

The large dicynodont Eubrachiosaurus browni from the Upper Triassic Popo Agie Formation of Wyoming is redescribed. Eubrachiosaurus is a valid taxon that differs from Placerias hesternus, with which it was previously synonymized, by greater anteroposterior expansion of the scapula dorsally and a very large, nearly rectangular humeral ectepicondyle with a broad supinator process. Inclusion of Eub...

Featured Article a New Gliding Tetrapod (diapsida: ?archosauromorpha) from the Upper Triassic (carnian) of Virginia

A New Aetosaur from the Upper Triassic (adamanian: Carnian) of Arizona

Adamanasuchus eisenhardtae is a new genus and species of aetosaur from the Upper Triassic (Adamanian: late Carnian) Blue Mesa Member of the Petrified Forest Formation (Chinle Group) in the Petrified Forest National Park, east-central Arizona. Known from part of its dorsal armor, caudal vertebrae, and a femur, A. eisenhardtae is distinguished by relatively narrow and arched paramedian osteoderms...

A Late Triassic major negative !13C spike linked to Wrangellia LIP: The Carnian Pluvial Event revealed

A Late Triassic major negative !13C spike linked to Wrangellia LIP: The Carnian Pluvial Event revealed J. DAL CORSO1*, P. MIETTO1, R.J. NEWTON2, R.D. PANCOST3, N. PRETO1, G. ROGHI4 AND P.B. WIGNALL2 1Dipartimento di Geoscienze, Università degli Studi di Padova, via Gradenigo 6, 35131, Padova, Italy (*correspondence: [email protected]). 2School of Earth and Environments, University of Lee...