Results 71 to 80 of about 939 (164)

Mandibular force profiles and tooth morphology in growth series of Albertosaurus sarcophagus and Gorgosaurus libratus (Tyrannosauridae: Albertosaurinae) provide evidence for an ontogenetic dietary shift in tyrannosaurids

open access: yes, 2021
The albertosaurines Albertosaurus sarcophagus and Gorgosaurus libratus are among the best represented tyrannosaurids, known from nearly complete growth series. These specimens provide an opportunity to study mandibular biomechanical properties and tooth morphology to infer changes in feeding behaviour and bite force through ontogeny in tyrannosaurids ...
Therrien, Franois   +3 more
openaire   +1 more source

Neurosensory and Sinus Evolution as Tyrannosauroid Dinosaurs Developed Giant Size: Insight from the Endocranial Anatomy of Bistahieversor sealeyi

open access: yesThe Anatomical Record, 2020
Tyrannosaurus rex and other tyrannosaurid dinosaurs were apex predators during the latest Cretaceous, which combined giant size and advanced neurosensory systems.
Matthew McKeown   +13 more
semanticscholar   +1 more source

THE OSTEOLOGY OF ALIORAMUS, A GRACILE AND LONG-SNOUTED TYRANNOSAURID (DINOSAURIA: THEROPODA) FROM THE LATE CRETACEOUS OF MONGOLIA [PDF]

open access: yes, 2012
Fig. 68: Closeup of right ilium of the holotype specimen of Alioramus altai (IGM 100/1844) in lateral view. Scale bar 5 5 cm. Abbreviations as in figure 66.Published as part of Brusatte, Stephen L., Carr, Thomas D.
Brusatte, Stephen L.   +2 more
core   +1 more source

New theropod dinosaur teeth from the Middle Jurassic of the Isle of Skye, Scotland [PDF]

open access: yes, 2019
Appendix 3:Datasets of theropod crown measurements used in the discriminant analysis and result of the discriminant analysis. The Excel sheet includes an updated version of Hendrickx et al.'s (2015) dataset as well as Smith and Lamanna's (2006) and Gerke
Averianov   +57 more
core   +4 more sources

Further material of the ceratosaurian dinosaur Syntarsus from the Elliot Formation (Early Jurassic) of South Africa [PDF]

open access: yes, 1999
Two further fossils recovered from the Elliot Formation in South Africa are referred to the ceratosaurian genus Syntarsus: a partial pelvis and a well preserved and articulated snout.
Munyikwa, Darlington
core  

Tyrannosaurinae Osborn 1906

open access: yes, 1988
SUBFAMILY TYRANNOSAURINAE (Osborn, 1906) Allosaur-like Indosuchus and knobby-nosed Alioramus are rather odd, but the rest of the tyrannosaur genera and species are distinctly uniform. Still a few distinctive characters, including size, robustness, and features of the skull mark these genera and species.
openaire   +3 more sources

Visualising muscle anatomy using three-dimensional computer models - an example using the head and neck muscles of Sphenodon [PDF]

open access: yes, 2009
We demonstrate how the computer-based technique of multi-body dynamics analysis (MDA) can be used to create schematic, but informative three-dimensional (3D) representations of complex muscle anatomy.
Curtis, N   +4 more
core  

A new tyrannosaur with evidence for anagenesis and crocodile-like facial sensory system [PDF]

open access: yes, 2017
A new species of tyrannosaurid from the upper Two Medicine Formation of Montana supports the presence of a Laramidian anagenetic (ancestor-descendant) lineage of Late Cretaceous tyrannosaurids.
Carr, Thomas D.   +4 more
core   +1 more source

Basal abelisaurid and carcharodontosaurid theropods from the Lower Cretaceous Elrhaz Formation of Niger [PDF]

open access: yes, 2008
We report the discovery of basal abelisaurid and carcharodontosaurid theropods from the mid Cretaceous (Aptian–Albian, ca. 112 Ma) Elrhaz Formation of the Niger Republic. The abelisaurid, Kryptops palaios gen. et sp.
Brusatte, S.L., Sereno, P.C.
core   +1 more source

Home - About - Disclaimer - Privacy