... bones and casts of Psittacosaurus neimongoliensis , Psittacosaurus mongoliensis , Leptoceratops gracilis and Protoceratops andrewsi . For Ps. neimongoliensis and ... that Psittacosaurus was an obligate biped and that Leptoceratops and Protoceratops were capable of quadrupedal locomotion. Forelimb ... Psittacosaurus for the hands to reach the mouth. Leptoceratops and Protoceratops are members of an evolutionary radiation ... ulna, causing the palms to face caudally. In Leptoceratops , the radius does not cross over the ulna; ...
Tópico(s): Amphibian and Reptile Biology
2007 - Wiley | Journal of Zoology
... here, show curvilinear striations on the teeth of Leptoceratops . These features indicate a rostral to caudal orbital ... allotherians, and some rodents, and its identification in Leptoceratops gracilis is the first evidence of complex, mammal- ...
Tópico(s): Amphibian and Reptile Biology
2016 - PeerJ, Inc. | PeerJ
A skeletal reconstruction of the small protoceratopsian dinosaur Leptoceratops gracilis from the latest Cretaceous of Alberta is presented. Leptoceratops has a greater number of presacral vertebrae than ...
Tópico(s): Amphibian and Reptile Biology
1970 - NRC Research Press | Canadian Journal of Earth Sciences
Victoria M. Arbour, David C. Evans,
... with Ferrisaurus recovered as more closely related to Leptoceratops than Montanoceratops. At 68.2-67.2 Ma ... between, and slightly overlaps with, both Montanoceratops and Leptoceratops, and represents a western range extension for Laramidian ...
Tópico(s): Amphibian and Reptile Biology
2019 - PeerJ, Inc. | PeerJ
Michael J. Ryan, Philip J. Currie,
... Maastrichtian of Montana and Campanian of Alberta and Leptoceratops from the late Maastrichtian of Alberta and Wyoming. ... complete left dentary which can be referred to Leptoceratops sp. Recent examination of Albertan microvertebrate material has ...
Tópico(s): Ichthyology and Marine Biology
1998 - NRC Research Press | Canadian Journal of Earth Sciences
Brenda Chinnery, David B. Weishampel,
... a cladistic analysis of eight basal neoceratopsians (Protoceratops, Leptoceratops, Bagaceratops, Microceratops, Breviceratops, Montanoceratops, Asiaceratops, and Udanoceratops) and ... are positioned at the base of Neoceratopsia. Protoceratops, Leptoceratops, and Udanoceratops constitute a monophyletic Protoceratopsidae. Paleogeographical interpretation ...
Tópico(s): Ichthyology and Marine Biology
1998 - Taylor & Francis | Journal of Vertebrate Paleontology
Michael J. Ryan, Philip J. Currie,
... Maastrichtian of Montana and Campanian of Alberta and Leptoceratops from the late Maastrichtian of Alberta and Wyoming. ... complete left dentary which can be referred to Leptoceratops sp. Recent examination of Albertan microvertebrate material has ...
Tópico(s): Paleontology and Stratigraphy of Fossils
1998 - NRC Research Press | Canadian Journal of Earth Sciences
... dominated continental vertebrate faunas arose, herein termed the Leptoceratops, Triceratops, and Alamosaurus faunas. Each was peculiar to ... epeiric sea, north of latitude 35°N. The Leptoceratops fauna inhabited cool piedmont environments flanking the mountainous ...
Tópico(s): Geological formations and processes
1987 - Elsevier BV | Palaeogeography Palaeoclimatology Palaeoecology
Eric M. Morschhauser, Hai‐Lu You, Daqing Li, Peter Dodson,
... have of ceratopsian postcranial anatomy between Psittacosaurus and Leptoceratops. Adult Auroraceratops had a length of approximately 125 ...
Tópico(s): Ichthyology and Marine Biology
2018 - Taylor & Francis | Journal of Vertebrate Paleontology
Peter J. Makovicky, Mark A. Norell,
... shares aspects of frill morphology with Liaoceratops and Leptoceratops that suggest a function unrelated to display for ...
Tópico(s): Pleistocene-Era Hominins and Archaeology
2006 - American Museum of Natural History | American Museum Novitates
... by a lower, more sloping head than in Leptoceratops, with a nasal that is pinched caudally, a ...
Tópico(s): Paleontology and Stratigraphy of Fossils
2004 - Taylor & Francis | Journal of Vertebrate Paleontology
Tópico(s): Evolution and Paleontology Studies
1978 - Cambridge University Press | Journal of Paleontology
... London. Vol. 3. Google Scholar Brown, Barnum, 1914. Leptoceratops, a New Genus of Ceratopsia from the Edmonton ...
1922 - Wiley | Acta Zoologica
Leonardo Maiorino, Andrew A. Farke, Tassos Kotsakis, Pasquale Raia, Paolo Piras,
... characterized by the opposite condition. Taxa such as Leptoceratops, Prenoceratops, Zhuchengceratops and Cerasinops appear to have had ...
Tópico(s): Morphological variations and asymmetry
2017 - Elsevier BV | Cretaceous Research