Species of plated dinosaur Stegosaurus (Morrison Formation, Late Jurassic) of western USA: new type species designation needed
- Environmental Science
Stegosaurus armatus Marsh 1877, based on a partial tail and a very large dermal plate from the Morrison Formation (Late Jurassic) of Morrison, Wyoming, USA, is a nomen dubium. Valid Morrison…
Reassessment of a Historical Collection of Sauropod Dinosaurs from the Northern Morrison Formation of Wyoming, with Implications for Sauropod Biogeography
- Environmental Science, GeographyBulletin of the American Museum of Natural History
ABSTRACT The Upper Jurassic Morrison Formation of the western United States preserves one of the best-known Mesozoic paleoecosystems worldwide. The formation crops out over an area from New Mexico…
The Braincase Assigned to the Ornithopod Dinosaur Uteodon McDonald, 2011, Reassigned to Dryosaurus Marsh, 1894: Implications for Iguanodontian Morphology and Taxonomy
- Geography, Environmental Science
ABSTRACT The braincase from the Upper Jurassic (lower Tithonian) Morrison Formation of the Carnegie Quarry at Dinosaur National Monument (Utah), which was assigned to the ankylopollexian…
ECOLOGICAL SEGREGATION OF THE LATE JURASSIC STEGOSAURIAN AND IGUANODONTIAN DINOSAURS OF THE MORRISON FORMATION IN NORTH AMERICA: PRONOUNCED OR SUBTLE?
- Geography, Environmental Science
The Upper Jurassic Morrison Formation of western North America has yielded a number of specimens assigned to the ornithischian dinosaurs Stegosaurus and Camptosaurus, and many of these specimens come…
Theropod teeth diversity from the Villar del Arzobispo Formation (Tithonian–Berriasian) at Riodeva (Teruel, Spain)
- Geography, Environmental SciencePalaeobiodiversity and Palaeoenvironments
Riodeva sites (Villar del Arzobispo Fm) in Teruel, Spain, have revealed themselves as a window through which to gain a better understanding of the Iberian dinosaurs of the Jurassic–Cretaceous…
The phylogenetic nomenclature of ornithischian dinosaurs
The nomenclature of ornithischian dinosaur clades is revised; 76 preexisting ornithischerian clade names are revisited, their recent and historical use is reviewed, and their phylogenetic definitions are formally established.
The Hand of Tenontosaurus Tilletti (Dinosauria, Ornithopoda)
- Environmental ScienceJournal of Vertebrate Paleontology
Ornithopods are among the most common members of North America’s Cretaceous dinosaurian faunas, yet despite their excellent representation in existing collections, the anatomy of the manus remains…
The skull and neck of a new flagellicaudatan sauropod from the Morrison Formation and its implication for the evolution and ontogeny of diplodocid dinosaurs
- BiologyMorphoBank datasets
Dinheirosaurus and Supersaurus now represent the sister clade to Apatosaurus and Diplodocinae and therefore the most basal diplodOCid genera.
Dacentrurine stegosaurs (Dinosauria): A new specimen of Miragaia longicollum from the Late Jurassic of Portugal resolves taxonomical validity and shows the occurrence of the clade in North America
- Biology, Environmental SciencePloS one
A largely complete specimen of M. longicollum is described, confirming this to be the first known dacentrurine stegosaur in America, coherent with the hypothesis of an ephemeral land bridge between North America and Iberia that allowed faunal exchange.
The Biogeography of Coelurosaurian Theropods and its Impact on their Evolutionary History
- Geography, Environmental SciencebioRxiv
The results statistically favour the DIVALIKE+J and DEC+J models, supporting continental vicariance as an important factor in coelurosaurian evolution, and recognise the importance of Europe as a dispersal centre and gateway in the Early Cretaceous, as well as other vicarance events like those triggered by the disappearance of land-bridges.