Feeding mechanics in spinosaurid theropods and extant crocodilians.
PLoS ONE, 2013 A number of extant and extinct archosaurs evolved an elongate, narrow rostrum. This longirostrine condition has been associated with a diet comprising a higher proportion of fish and smaller prey items compared to taxa with broader, more robust snouts ...
Andrew R Cuff, Emily J Rayfield
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Fast-running theropods tracks from the Early Cretaceous of La Rioja, Spain [PDF]
Scientific Reports, 2021 Theropod behaviour and biodynamics are intriguing questions that paleontology has been trying to resolve for a long time. The lack of extant groups with similar bipedalism has made it hard to answer some of the questions on the matter, yet theoretical ...
Pablo Navarro-Lorbés +7 more
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Aerodynamics Show Membrane-Winged Theropods Were a Poor Gliding Dead-end
iScience, 2020 Summary: The bizarre scansoriopterygid theropods Yi and Ambopteryx had skin stretched between elongate fingers that form a potential membranous wing. This wing is thought to have been used in aerial locomotion, but this has never been tested. Using laser-
T. Alexander Dececchi +8 more
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Sauropods stomping theropods, redux
, 2011 A month ago, I posted an article containing all the examples known to me of that sadly neglected palaeo-art theme, Sauropods Stomping Theropods: Mark Hallet's <em> Jobaria </em> squishing <em> Afrovenator </em> , Luis Rey's <em> Astrodon </em> biting/carrying a raptor, Mark Witton's <em> Camarasaurus </em>
Mike Taylor
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Scientific Reports, 2022 Dromaeosaurids were bird-like dinosaurs with a predatory ecology known to forage on fish, mammals and other dinosaurs. We describe Daurlong wangi gen. et sp.
Xuri Wang +5 more
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Comparative cranial biomechanics reveal macroevolutionary trends in theropod dinosaurs, with emphasis on Tyrannosauroidea. [PDF]
Anat 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
T. rex cognition was T. rex-like-A critical outlook on diverging views of the neurocognitive evolution in dinosaurs. [PDF]
Anat Rec (Hoboken)Abstract A recent debate has emerged between Caspar et al. (2024) and Herculano‐Houzel (2023) on inferring extinct dinosaur cognition by estimating brain neuron counts. While thought‐provoking, the discussion largely overlooks the function of cognition, as well as partly neglects the difficulties involved in estimating neuron numbers, which according ...
Jensen TR +7 more
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Growth dynamics, skeletochronology, and histovariability of the theropod dinosaur Berthasaura leopoldinae. [PDF]
Anat 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]
J AnatTuriasaurian 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
Common developmental origins of beak shapes and evolution in theropods. [PDF]
iScienceVertebrate beaks show a remarkable diversity of forms, epitomized by birds and non-avian theropods. Few studies have investigated how underlying developmental processes influence beak shape.
Garland KLS, Hay EM, Field DJ, Evans AR.
europepmc +3 more sources