C. Sidor

Publications118
h-index31
Citations3,336
Highly Influential Citations332
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Predatory Dinosaurs from the Sahara and Late Cretaceous Faunal Differentiation
Late Cretaceous (Cenomanian) fossils discovered in the Kem Kem region of Morocco include large predatory dinosaurs that inhabited Africa as it drifted into geographic isolation. One, represented by a… Expand
Ecologically distinct dinosaurian sister group shows early diversification of Ornithodira
The early evolutionary history of Ornithodira (avian-line archosaurs) has hitherto been documented by incomplete (Lagerpeton) or unusually specialized forms (pterosaurs and Silesaurus). Recently, a… Expand
The Giant Crocodyliform Sarcosuchus from the Cretaceous of Africa
New fossils of the giant African crocodyliform Sarcosuchus imperator clarify its skeletal anatomy, growth patterns, size, longevity, and phylogenetic position. The skull has an expansive narial bulla… Expand
The earliest bird-line archosaurs and the assembly of the dinosaur body plan.
The relationship between dinosaurs and other reptiles is well established, but the sequence of acquisition of dinosaurian features has been obscured by the scarcity of fossils with transitional… Expand
A NEW NOTOSUCHIAN FROM THE EARLY CRETACEOUS OF NIGER
P. C. SERENO1, C. A. SIDOR2, H. C. E. LARSSON3, and B. GADO4 1Department of Organismal Biology and Anatomy, University of Chicago, Chicago, Illinois 60615, dinosaur@uchicago.edu; 2Department of… Expand
Cranial Anatomy of Ennatosaurus tecton (Synapsida: Caseidae) from the Middle Permian of Russia and the Evolutionary Relationships of Caseidae
Abstract Detailed description of the Middle Permian Russian caseid Ennatosaurus tecton shows that three autapomorphies distinguish it from other caseids: a broad anterior ramus of the jugal, a large… Expand
SIMPLIFICATION AS A TREND IN SYNAPSID CRANIAL EVOLUTION
  • C. Sidor
  • Biology, Medicine
  • Evolution; international journal of organic…
  • 1 July 2001
Abstract.— The prevalence and meaning of morphological trends in the fossil record have undergone renewed scrutiny in recent years. Studies have typically focused on trends in body size evolution,… Expand
GHOST LINEAGES AND MAMMALNESS : ASSESSING THE TEMPORAL PATTERN OF CHARACTER ACQUISITION IN THE SYNAPSIDA
The origin of mammals has been characterized as a gradual process, a claim based pri- marily on a well-preserved series of extinct nonmammalian synapsids ("mammal-like reptiles") that span some 200… Expand
ELLIOTHERIUM KERSTENI, A NEW TRITHELEDONTID FROM THE LOWER ELLIOT FORMATION (UPPER TRIASSIC) OF SOUTH AFRICA
Abstract We describe a new tritheledontid, Elliotherium kersteni n. gen. and sp., on the basis of a partial skull collected from the lower Elliot Formation (Upper Triassic; Euskelosaurus Range Zone)… Expand
A second varanopseid skull from the Upper Permian of South Africa: implications for Late Permian ‘pelycosaur’ evolution
Late Permian terrestrial faunas of South Africa and Russia are dominated taxonomically and ecologically by therapsid synapsids. On the basis of a single specimen from the Upper Permian of South… Expand
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