Results 11 to 20 of about 4,665 (222)

Comparative cranial biomechanics reveal macroevolutionary trends in theropod dinosaurs, with emphasis on Tyrannosauroidea. [PDF]

open access: yesAnat Rec (Hoboken)
Abstract Tyrannosaurus is viewed as a model organism in vertebrate paleontology, with numerous studies analyzing its feeding biomechanics. Nonetheless, the evolution of this feeding performance has been under‐addressed in Tyrannosauroidea, especially in basal tyrannosauroids. Here we used muscle‐force reconstruction and finite element analysis (FEA) to
Johnson-Ransom E   +4 more
europepmc   +2 more sources

Growth dynamics, skeletochronology, and histovariability of the theropod dinosaur Berthasaura leopoldinae. [PDF]

open access: yesAnat Rec (Hoboken)
Osteohistological sampling on different bones of theropod dinosaur documents discrepant age record, growth, and metabolism. This could result unprecise paleobiological inferences if samplings are based on single bones. However, multi‐bone sampling can attenuate these discrepancies, helping to infer growth dynamics and physiology of these extinct ...
de Souza GA   +3 more
europepmc   +2 more sources

Heterodonty in the teeth of the turiasaurian sauropod from Angeac-Charente (Early Cretaceous, southwestern France): Comparison of anatomical and geometric morphometric approaches. [PDF]

open access: yesJ Anat
Turiasaurian teeth from Angeac‐Charente exhibit five dental morphotypes and reveal clear heterodonty and anteroposterior size gradient. Qualitative comparative anatomy quickly and efficiently identifies morphotypes, while 3D geometric morphometrics combined with machine learning refine ambiguous cases, demonstrating that qualitative and quantitative ...
Gouellec CL   +7 more
europepmc   +2 more sources

Platinum Group Element Traces of CAMP Volcanism Associated With Low‐Latitude Environmental and Biological Disruptions

open access: yesGeophysical Monograph Series, Page 263-304., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Jessica H. Whiteside   +3 more
wiley  

+1 more source

The evolution of large-bodied theropod dinosaurs during the Mesozoic in Asia [PDF]

open access: yes, 2010
The fossil record of large-bodied, apex carnivorous theropod dinosaurs in Eastern Asia is now among the best understood in the world, thanks to new discoveries and reinterpretations of long-neglected fossils.
Benson, R. B. J.   +9 more
core   +1 more source

Review of the Dinosaur Remains from the Middle Jurassic of Scotland, UK

open access: yesGeosciences, 2018
Dinosaurs are rare from the Middle Jurassic worldwide. The Isle of Skye, is the only place in Scotland thus far to have produced dinosaur remains. These remains consist mainly of footprints, but also several bones and teeth.
Neil D. L. Clark
doaj   +1 more source

A reassessment of Kelmayisaurus petrolicus, a large theropod dinosaur from the Early Cretaceous of China [PDF]

open access: yes, 2012
The Early Cretaceous fossil record of large-bodied theropods from Asia is poor, hindering comparison of Asian predatory dinosaur faunas with those from other continents. One of the few large Asian theropod specimens from this interval is a partial skull (
Stephen L. Brusatte   +12 more
core   +2 more sources

A Comparison of the Dinosaur Communities from the Middle Jurassic of the Cleveland (Yorkshire) and Hebrides (Skye) Basins, Based on Their Ichnites

open access: yesGeosciences, 2018
Despite the Hebrides and Cleveland basins being geographically close, research has not previously been carried out to determine faunal similarities and assess the possibility of links between the dinosaur populations.
Mike Romano   +2 more
doaj   +1 more source

A Carcharodontosaurid tooth from the Hasandong Formation (Lower Cretaceous) of South Korea

open access: yesMongolian Geoscientist, 2020
A large tooth of theropod dinosaur that was recovered from the Hasandong Formation (Lower Cretaceous; Aptian-Albian) in Daedo island, Hadong Couty, South Gyeongsang Province of South Korea is redescribed.
Chan-gyu Yun
doaj   +1 more source

Abelisauroidea (Theropoda, Dinosauria) from Africa: a review of the fossil record [PDF]

open access: yesPapéis Avulsos de Zoologia, 2023
The Continental African abelisauroid theropod dinosaur fossil record from the Jurassic-Cretaceous periods is becoming increasingly better understood, and offers great insight into the evolution and biogeography of this long-lived group of carnivores ...
André Luis de Souza-Júnior   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy