Results 21 to 30 of about 789 (158)

Diuqin lechiguanae gen. et sp. nov., a new unenlagiine (Theropoda: Paraves) from the Bajo de la Carpa Formation (Neuquén Group, Upper Cretaceous) of Neuquén Province, Patagonia, Argentina [PDF]

open access: yesBMC Ecology and Evolution
Background Unenlagiine paravians are among the most relevant Gondwanan theropod dinosaur clades for understanding the origin of birds, yet their fossil record remains incomplete, with most taxa being represented by fragmentary material and/or separated ...
Juan D. Porfiri   +5 more
doaj   +2 more sources

The endocranium and trophic ecology of Velociraptor mongoliensis. [PDF]

open access: yesJ Anat, 2020
We reconstructed the brain cavity and inner ear of Velociraptor to better understand its lifestyle and hunting abilities. We found brain structures that are present in modern birds, indicating an exceptional sense of balance and agility. The inner ear also closely resembles that of flightless birds, and Velociraptor had a similar hearing ability to ...
King JL   +4 more
europepmc   +2 more sources

Redescription and affinities of Hulsanpes perlei (Dinosauria, Theropoda) from the Upper Cretaceous of Mongolia [PDF]

open access: yesPeerJ, 2018
Hulsanpes perlei is an enigmatic theropod dinosaur from the Baruungoyot Formation (?mid- to upper Campanian, Upper Cretaceous) of Mongolia. It was discovered in 1970, during the third Polish-Mongolian paleontological expedition to the Nemegt Basin.
Andrea Cau, Daniel Madzia
doaj   +3 more sources

Paravian Phylogeny and the Dinosaur-Bird Transition: An Overview [PDF]

open access: yesFrontiers in Earth Science, 2019
Recent years witnessed the discovery of a great diversity of early birds as well as closely related non-avian theropods, which modified previous conceptions about the origin of birds and their flight. We here present a review of the taxonomic composition
Federico L. Agnolin   +10 more
doaj   +3 more sources

Multivariate and Cladistic Analyses of Isolated Teeth Reveal Sympatry of Theropod Dinosaurs in the Late Jurassic of Northern Germany. [PDF]

open access: yesPLoS ONE, 2016
Remains of theropod dinosaurs are very rare in Northern Germany because the area was repeatedly submerged by a shallow epicontinental sea during the Mesozoic.
Oliver Gerke, Oliver Wings
doaj   +2 more sources

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

open access: yesActa 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

open access: yesActa 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
doaj   +1 more source

Modified skulls but conservative brains? The palaeoneurology and endocranial anatomy of baryonychine dinosaurs (Theropoda: Spinosauridae)

open access: yesJournal of Anatomy, Volume 242, Issue 6, Page 1124-1145, June 2023., 2023
Spinosaurids were unusual large‐bodied tetanuran theropods with semi‐aquatic ecologies. The neuroanatomy of baryonychine spinosaurids has yet to be studied, and may inform about the early evolution of the spinosaurid brain and sensory capabilities. With unexceptional hearing and olfaction, baryonychine endocasts share morphological similarities with ...
Chris Tijani Barker   +9 more
wiley   +1 more source

Machine learning confirms new records of maniraptoran theropods in Middle Jurassic UK microvertebrate faunas

open access: yesPapers in Palaeontology, Volume 9, Issue 2, March/April 2023., 2023
Abstract Current research suggests that the initial radiation of maniraptoran theropods occurred in the Middle Jurassic, although their fossil record is known almost exclusively from the Cretaceous. However, fossils of Jurassic maniraptorans are scarce, usually consisting solely of isolated teeth, and their identifications are often disputed.
Simon Wills   +3 more
wiley   +1 more source

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