Results 21 to 30 of about 2,363 (235)

Evaluating the paleoecology of the Megaraptora (Dinosauria: Theropoda) through biomechanical approaches

Spanish Journal of Palaeontology
Megaraptoran theropods represent an enigmatic and unusual lineage of theropod dinosaurs that are characterized by their unique bauplan including a low, elongated skull and robust forelimbs with enlarged claws.
Chan-gyu Yun
semanticscholar   +3 more sources

Allosaurus europaeus (Theropoda: Allosauroidea) Revisited and Taxonomy of the Genus

Diversity
Allosaurus is one of the most famous theropod dinosaurs, but the validity and relationships between the different species have been confusing and often questioned.
André Burigo, Octávio Mateus
doaj   +2 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, GALADRIEL FREEMAN PETERS, PHILIP JOHN CURRIE   +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

A new geographical record of Abelisauridae (Theropoda, Dinosauria) for the Bauru Group (Upper Cretaceous)

Journal of South American Earth Sciences, 2023
A. Giaretta, S. Rodrigues, P. V. Buck
semanticscholar   +2 more sources

Why tyrannosaurid forelimbs were so short: An integrative hypothesis [PDF]

Acta Palaeontologica Polonica, 2022
The unusually shortened limbs of giant theropods, including abelisaurids, carcharodontosaurids, and derived tyrannosauroids such as Tyrannosaurus rex have long been an object of wonder, speculation, and even derision on the part of both ...
KEVIN PADIAN
doaj   +1 more source

Skull of a dromaeosaurid dinosaur Shri devi from the Upper Cretaceous of the Gobi Desert suggests convergence to the North American forms

Acta Palaeontologica Polonica, 2023
Numerous dromaeosaurid taxa recovered from the Upper Cretaceous strata of the Gobi Desert raise questions over niche partitioning among closely related species.
ŁUKASZ CZEPIŃSKI
doaj   +1 more source

Iridescent plumage in a juvenile dromaeosaurid theropod dinosaur

Acta Palaeontologica Polonica, 2023
Colour reconstructions have provided new insights into the lives of dinosaurs and other extinct animals, by predicting colouration patterns from fossilised pigment-bearing organelles called melanosomes.
ANGUS D. CROUDACE, CAIZHI SHEN, JUNCHANG LÜ, STEPHEN L. BRUSATTE, JAKOB VINTHER   +4 more
doaj   +1 more source

NEW CONTRIBUTIONS TO THE KNOWLEDGE OF ABELISAURIDAE (DINOSAURIA, THEROPODA) FROM THE UPPER CRETACEOUS IBERO-ARMORICAN LANDMASS

Ameghiniana
E. Isasmendi, E. Malafaia
semanticscholar   +2 more sources

A new two-fingered dinosaur sheds light on the radiation of Oviraptorosauria [PDF]

Royal Society Open Science, 2020
Late Cretaceous trends in Asian dinosaur diversity are poorly understood, but recent discoveries have documented a radiation of oviraptorosaur theropods in China and Mongolia.
Gregory F. Funston, Tsogtbaatar Chinzorig, Khishigjav Tsogtbaatar, Yoshitsugu Kobayashi, Corwin Sullivan, Philip J. Currie   +5 more
doaj   +1 more source