The muscle-powered bite of allosaurus (dinosauria; theropoda): an interpretation of cranio-dental morphology [PDF]
Estudios Geologicos, 2003 11 pages, 7 figures.[EN] The skull morphology of Allosaurus has been the subject of functional interpretations which imply a predatory behaviour radically different from that recorded in any predatory land vertebrate.
Antón, Mauricio +3 more
core +4 more sources
Ontogenetic Changes in Endocranial Anatomy in Gorgosaurus libratus (Theropoda: Tyrannosauridae) Provide Insight Into the Evolution of the Tyrannosauroid Endocranium. [PDF]
J Comp NeurolChanges through growth (ontogenetic) in the braincase of the eutyrannosaurian tyrannosauroid Gorgosaurus libratus are discussed. Most notably, brain cavity endocasts of immature Gorgosaurus are found to more clearly show details of the brain morphology than more mature individuals, a finding that has implications for improving dinosaur paleoneurology ...
Voris JT +4 more
europepmc +2 more sources
Osteology of the unenlagiid theropod Neuquenraptor argentinus from the Late Cretaceous of Patagonia [PDF]
Acta Palaeontologica Polonica, 2017 Neuquenraptor argentinus was described as the first undoubted deinonychosaurian theropod from Gondwana. The only known specimen is represented by a fragmentary skeleton, including a nearly complete foot, coming from Late Cretaceous beds of Neuquén ...
Agnolin, Federico +3 more
core +4 more sources
Dinosaur teeth from the Lower Cretaceous Jiufotang Formation of western Liaoning, China [PDF]
PeerJHere, two dinosaur teeth are discovered from the Lower Cretaceous Jiufotang Formation in Longcheng, Chaoyang, western Liaoning, China. This discovery marks a new fossil site for the Jehol Biota, characterized by three-dimensionally preserved fossils ...
Yin Y, Li Y, Hu J, Zhang H.
europepmc +3 more sources
Avialan-like brain morphology in Sinovenator (Troodontidae, Theropoda). [PDF]
Commun BiolMany modifications to the skull and brain anatomy occurred along the lineage encompassing non-avialan theropod dinosaurs and modern birds. Anatomical changes to the endocranium include an enlarged endocranial cavity, relatively larger optic lobes that ...
Yu C +6 more
europepmc +2 more sources
Statistical evaluation of character support reveals the instability of higher-level dinosaur phylogeny. [PDF]
Sci Rep, 2023 The interrelationships of the three major dinosaur clades (Theropoda, Sauropodomorpha, and Ornithischia) have come under increased scrutiny following the recovery of conflicting phylogenies by a large new character matrix and its extensively modified ...
Černý D, Simonoff AL.
europepmc +2 more sources
European ornithomimosaurs (Dinosauria, Theropoda) : an undetected record [PDF]
Geologica Acta, 2014 Early Cretaceous ornithomimosaurian theropod dinosaurs have been reported from various localities in Asia, whereas they remain poorly represented and extremely rare in North America, Africa and Europe.
Allain, R. +3 more
core +4 more sources
Allometric growth in the frontals of the Mongolian theropod dinosaur Tarbosaurus bataar [PDF]
Acta Palaeontologica Polonica, 2022 Tarbosaurus bataar is a sister taxon of the well-studied theropod dinosaur Tyrannosaurus rex, and numerous fossils of this tyrannosaurid have been discovered in the Upper Cretaceous Nemegt Formation of Mongolia. Although specimens of different sizes of
CHAN-GYU YUN +2 more
doaj +1 more source
New data on the distal tarsals in Ornithomimidae [PDF]
Acta Palaeontologica Polonica, 2021 The ankle in non-avian theropod dinosaurs consists of the astragalus and calcaneum proximally and a distal series of tarsal bones capping the metatarsals.
RACHEL E. NOTTRODT, ANDREW A. FARKE
doaj +1 more source
Shake a tail feather: the evolution of the theropod tail into a stiff aerodynamic surface [PDF]
, 2013 Theropod dinosaurs show striking morphological and functional tail variation; e.g., a long, robust, basal theropod tail used for counterbalance, or a short, modern avian tail used as an aerodynamic surface.
A Tyson +89 more
core +19 more sources