New perspectives on body size and shape evolution in dinosaurs. [PDF]
Biol Rev Camb Philos SocABSTRACT Diversity in the body shapes and sizes of dinosaurs was foundational to their widespread success during the Mesozoic era. The ability to quantify body size and form reliably is therefore critical to the study of dinosaur biology and evolution.
Dempsey M +4 more
europepmc +2 more sources
Gondwana Research[EN] In recent years the Middle Atlas of Morocco has become an area of interest for the study of dinosaurs in northern Africa. The Boulahfa locality, near Boulemane, has produced a diverse dinosaur assemblage from the Middle Jurassic of the El Mers Group.
Omar Zafaty +7 more
semanticscholar +6 more sources
Internal vascularity of the dermal plates of Stegosaurus (Ornithischia, Thyreophora)
Swiss Journal of Geosciences, 2010 X-ray computed tomography and petrographic thin sectioning were used to study internal features of the plates of the thyreophoran dinosaur Stegosaurus and the osteoderms of Alligator. Infrared thermographic imaging of basking caimans was used to examine possible differential blood flow to osteoderms and other parts of the skin.
J. Farlow, S. Hayashi, G. Tattersall
semanticscholar +2 more sources
A new ankylosaurine dinosaur from the Judith River Formation of Montana, USA, based on an exceptional skeleton with soft tissue preservation [PDF]
Royal Society Open Science, 2017 The terrestrial Judith River Formation of northern Montana was deposited over an approximately 4 Myr interval during the Campanian (Late Cretaceous). Despite having been prospected and collected continuously by palaeontologists for over a century, few ...
Victoria M. Arbour, David C. Evans
doaj +1 more source
Neural canal ridges: A novel osteological correlate of postcranial neuroanatomy in dinosaurs. [PDF]
Anat Rec (Hoboken)Abstract In this article, we document the widespread presence of bony ridges in the neural canals of non‐avian dinosaurs, including a wide diversity of sauropods, two theropods, a thyreophoran, and a hadrosaur. These structures are present only in the caudal vertebrae.
Atterholt J +7 more
europepmc +2 more sources
Two new stegosaur specimens from the Upper Jurassic Morrison Formation of Montana, USA [PDF]
Acta Palaeontologica Polonica, 2019 Two partial skeletons from Montana represent the northernmost occurrences of Stegosauria within North America. One of these specimens represents the northernmost dinosaur fossil ever recovered from the Morrison Formation.
D. Cary Woodruff +2 more
doaj +1 more source
The enamel microstructure of Manidens condorensis: New hypotheses on the ancestral state and evolution of enamel in Ornithischia [PDF]
Acta Palaeontologica Polonica, 2020 Previous studies on enamel microstructure in Ornithischia have focused on derived lineages of this clade based on species from the northern hemisphere.
Marcos G. Becerra, Diego Pol
doaj +1 more source
Comments and corrections on 3D modeling studies of locomotor muscle moment arms in archosaurs. [PDF]
PeerJ, 2015 © 2015 Bates et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, reproduction and adaptation in any medium and for any purpose provided that it is ...
Bates K +3 more
europepmc +6 more sources
A reassessment of the purported ankylosaurian dinosaur Bienosaurus lufengensis from the Lower Lufeng Formation of Yunnan, China [PDF]
Acta Palaeontologica Polonica, 2019 The earliest definitive ornithischian dinosaurs are from the Early Jurassic and are rare components of early dinosaur faunas. The Lower Lufeng Formation (Hettangian–Sinemurian) of Yunnan Province, China, has yielded a diverse Early Jurassic terrestrial ...
Thomas J. Raven +3 more
doaj +1 more source
The Anatomical Record, Volume 306, Issue 10, Page 2514-2536, October 2023., 2023 Abstract A reversion to secondary quadrupedality is exceptionally rare in nature, yet the convergent re‐evolution of this locomotor style occurred at least four separate times within Dinosauria. Facultative quadrupedality, an intermediate state between obligate bipedality and obligate quadrupedality, may have been an important transitional step in this
Lilian Anderson +4 more
wiley +1 more source