Results 21 to 30 of about 183 (111)
Palaeontology, Volume 65, Issue 3, May/June 2022., 2022 Abstract Little is known about the large‐scale evolutionary patterns of skull size relative to body size, and the possible drivers behind these patterns, in Archosauromorpha. For example, the large skulls of erythrosuchids, a group of non‐archosaurian archosauromorphs from the Early and Middle Triassic, and of theropod dinosaurs are regarded as ...
Jordan Bestwick +8 more
wiley +1 more source
Craniofacial ontogeny in Centrosaurus apertus [PDF]
PeerJ, 2014 Centrosaurus apertus, a large bodied ceratopsid from the Late Cretaceous of North America, is one of the most common fossils recovered from the Belly River Group.
Joseph A. Frederickson +1 more
doaj +2 more sources
Palaeontology, Volume 64, Issue 3, Page 371-384, May 2021., 2021 Abstract Many dinosaurs may have shown ecological differentiation between hatchlings and adults, possibly because of the great size differential. The basal ceratopsian Psittacosaurus lujiatunensis is known from thousands of specimens from the Lower Cretaceous of China and these include many so‐called ‘juvenile clusters.’ During the early stages of ...
Damiano Landi +5 more
wiley +1 more source
The postcranial skeleton of Vagaceratops irvinensis (Dinosauria, Ceratopsidae)
Vertebrate Anatomy, Morphology, Palaeontology, 2014 The postcranial skeleton of Vagaceratops (= Chasmosaurus) irvinensis (CMN 41357), lacking only the tail, most of the left front and left hind limbs, and portions of the pelvis, is preserved in articulation.
Robert B Holmes
doaj +3 more sources
Bone histology of Protoceratops andrewsi from the Late Cretaceous of Mongolia and its biological implications [PDF]
Acta Palaeontologica Polonica, 2018 Protoceratops andrewsi is one of the best known and abundant ornithischian dinosaurs from the Djadokhta Formation (Late Cretaceous, Mongolia) and a subject of many morphological studies.
Łucja Fostowicz-Frelik +1 more
doaj +1 more source
Ontogenetic stages of ceratopsian dinosaur Psittacosaurus in bone histology [PDF]
Acta Palaeontologica Polonica, 2019 The early ceratopsians Psittacosaurus and Protoceratops have provided important information on dinosaurian development because of abundant specimens of adults, subadults, juveniles, and even hatchlings.
Qi Zhao +3 more
doaj +1 more source
Osteohistology on Liaoceratops yanzigouensis (Dinosauria: Neoceratopsia) from the Early Cretaceous Jehol Biota [PDF]
古脊椎动物学报 (中英文版)Ceratopsia is among the most extensively studied groups of dinosaurs. However, research on ceratopsian osteohistology remains extremely limited, leaving significant gaps in our understanding of their growth rates, growth patterns, and life histories ...
GUO Te, HE Yi-Ming, ZHAO Qi
doaj +1 more source
Variation in the shape and mechanical performance of the lower jaws in ceratopsid dinosaurs (Ornithischia, Ceratopsia) [PDF]
Journal of Anatomy, 2015 AbstractCeratopsidae represents a group of quadrupedal herbivorous dinosaurs that inhabited western North America and eastern Asia during the Late Cretaceous. Although horns and frills of the cranium are highly variable across species, the lower jaw historically has been considered to be relatively conservative in morphology.
Maiorino, Leonardo +4 more
openaire +4 more sources
, 1992 Published as part of Hunt, A. P. & Lucas, S. G., 1992, Stratigraphy, paleontology and age of the Fruitland and Kirtland Formations (upper Cretaceous), San Juan Basin, New Mexico, pp. 217-239 in New Mexico Geological Society, New Mexico Geological Society 43 rd Annual Fall Field Conference Guidebook on page 231, DOI: 10.5281/zenodo ...
Hunt, A. P., Lucas, S. G.
openaire +2 more sources