Ceratopsian postcranial anatomy varies throughout the clade. Psittacosauridae, a clade of small herbivores known only from the Early Cretaceous of Asia, share the diagnostic ceratopsian rostral bone with the other members of Ceratopsia. Psittacosaurs are characterized by long hind limb elements, relatively short
Stenopelix - Wikipedia
Stenopelix (meaning "narrow pelvis") is a genus of small marginocephalian dinosaur, possibly a basal ceratopsian, from the Early Cretaceous of Germany. It lived in the late Berriasian Stage of the Cretaceous period, approximately 140 myr ago. [1]
Ceratopsian pelvic bones (UCM 68914) from Denver
Download scientific diagram | Ceratopsian pelvic bones (UCM 68914) from Denver Formation. Right ilium lacking most of preacetabular blade in dorsal (A), lateral (B), medial (C), and ventral (D)...
The limbs of ceratopsians of all sizes display substantial joint flexure, strongly indicating that the elephantine forelimb posture that has sometimes been suggested as the alternative to a sprawling posture is erroneous.
GEOL 104 Marginocephalia: That's Using Your Head! - UMD
2024年7月2日 · Key Points: •Marginocephalia is a clade of herbivorous ornithischians characterized by an expansion of the bones at the rear of the skull. There are two major clades within it: Pachycephalosauria and Ceratopsia. •Pachycephalosaurs are currently only known from the Cretaceous of Asia and North America.
Leptoceratops - Wikipedia
Leptoceratops (meaning 'small horn face') is a genus of ceratopsian dinosaur from the Late Cretaceous of North America. First found in Alberta in 1910, the type species Leptoceratops gracilis was named in 1914 by Barnum Brown for a partial skull and skeleton of two individuals found in the Scollard Formation of Alberta.
Sexual Dimorphism in the Postcranial Skeleton of Dinosaurs
2021年3月1日 · This shows that while ceratopsians and theropod dinosaurs show similar sexual differences in the robustness of the vertebrae and the height of the pelvic canal (characters 4 and 15), they have clearly different patterns of dimorphism in pelvic width.
(PDF) NEW EVIDENCE FOR PREDATORY BEHAVIOR IN
2018年1月1日 · A nearly complete skull of a chasmosaurine ceratopsian from the late Campanian of the Kirtland Formation of northwestern New Mexico shows evidence of an attack by a large tyrannosaurid dinosaur....
BrantWorks: Triceratops Osteology
Triceratops pelvis in (a) lateral and (b) dorsal views. Abbreviations; (il) ilium, (p) pubis, (is) ischium, (a) acetabulum. From Marsh O. C 1891, Restoration of Triceratops. American Journal of Science, 41:339-342
9) A is the pelvis of Triceratops in left lateral view. Like other ceratopsids, but unlike more primitive ceratopsians and most other ornithischians, the pubis and ischium can move together as a unit. As the rectus abdominis (RA) muscle contacted, it …