Results 181 to 190 of about 5,330 (201)
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The Phylogeny of Ceratosauria (Dinosauria: Theropoda)
Journal of Systematic Palaeontology, 2008Synopsis Recent discoveries and analyses have drawn increased attention to Ceratosauria, a taxonomically and morphologically diverse group of basal theropods. By the time of its first appearance in the Late Jurassic, the group was probably globally distributed.
Carrano, Matthew T., Sampson, S. D.
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Pathological pitting in ankylosaur (Dinosauria) osteoderms
International Journal of Paleopathology, 2016Large ulcerative pits on the external surface of ankylosaur (Dinosauria) osteoderms have been recognized for many years. They have been ascribed without supporting evidence to damage by predator teeth or to disease. The discovery of numerous examples of pitted osteoderms in a monospecific ankylosaur (Gastonia n.sp.) bone bed in eastern Utah (USA ...
Lorrie A. McWhinney +2 more
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Avemetatarsalia and the Origin of Dinosauria
2022This chapter looks into early avemetatarsalians and the origin of Dinosauria. From the period of late Triassic and Mesozoic, Avemetatarsalia is a large and diverse clade including many familiar extinct vertebrates, such as pterosaurs and non-avian dinosaurs like birds. Moreover, Avemetatarsalians decoupled the functions of the fore and hindlimbs, which
F. Harvey Pough +3 more
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Skull of a Jurassic ankylosaur (Dinosauria)
Nature, 1998The origin and early evolution of many major dinosaur groups are poorly known because specimens are rare. One of these groups, the Ankylosauria, or armour-plated dinosaurs, is best known from well-preserved specimens from the Upper Cretaceous period of Asia and North America.
Clifford Miles +2 more
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Systematics and phylogeny of Stegosauria (Dinosauria: Ornithischia)
Journal of Systematic Palaeontology, 2008Synopsis Stegosauria is a clade of ornithischian dinosaurs characterised by a bizarre array of dermal armour extending, in two parasagittal rows, from the cervical region to the end of the tail. Although Stegosaurus is one of the most familiar of all dinosaurs, little is known regarding the evolutionary history of this clade.
Maidment, Susannah +3 more
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Phylogenetic position of Turanoceratops (Dinosauria: Ceratopsia)
Naturwissenschaften, 2009Farke et al. (2009) commented on our recent paper describing new material of the Late Cretaceous ceratopsian dinosaur Turanoceratops from Uzbekistan (Sues and Averianov 2009). We provided evidence that Turanoceratops is the first member of the clade Ceratopsidae known outside North America. Farke et al.
Sues, Hans-Dieter, Averianov, Alexander
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