Results 1 to 10 of about 718 (133)
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 ...
Ya-Lei Yin +3 more
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Avialan-like brain morphology in Sinovenator (Troodontidae, Theropoda) [PDF]
Communications BiologyMany 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 ...
Congyu Yu +6 more
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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
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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
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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
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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
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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 +4 more
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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 +5 more
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Royal Society Open Science, 2021 Locomotor energetics are an important determinant of an animal's ecological niche. It is commonly assumed that animals minimize locomotor energy expenditure by selecting gait kinematics tuned to the natural frequencies of relevant body parts.
Pasha A. van Bijlert +2 more
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New theropod (Tetanurae: Avetheropoda) material from the ‘mid’-Cretaceous Griman Greek Formation at Lightning Ridge, New South Wales, Australia [PDF]
Royal Society Open Science, 2019 The limited fossil record of Australian Cretaceous theropods is dominated by megaraptorids, reported from associated and isolated material from the Early Cretaceous of Victoria and the ‘Mid’-Cretaceous of central-north New South Wales and central ...
Tom Brougham +2 more
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