Results 71 to 80 of about 731 (174)
New perspectives on body size and shape evolution in dinosaurs
Biological Reviews, Volume 100, Issue 5, Page 1829-1860, October 2025.ABSTRACT Diversity in the body shapes and sizes of dinosaurs was foundational to their widespread success during the Mesozoic era. The ability to quantify body size and form reliably is therefore critical to the study of dinosaur biology and evolution.
Matthew Dempsey +4 more
wiley +1 more source
Osteohistology of the unusually fast‐growing theropod dinosaur Ceratosaurus
Journal of Anatomy, Volume 247, Issue 3-4, Page 765-789, September/October 2025.We report the histology of multiple elements attributed to four individuals of Ceratosaurus. We find that the histology and growth models corroborate previous reports of rapid tissue growth in the genus. Abstract Ceratosaurus is a large‐bodied non‐avian theropod dinosaur known from the Upper Jurassic Morrison Formation of North America and is ...
Riley Sombathy +2 more
wiley +1 more source
, 1981 Published as part of John S. McIntosh, 1981, Annotated catalogue of the dinosaurs (Reptilia, Archosauria) in the collections of Carnegie Museum of Natural History, pp.
openaire +2 more sources
Taxonomic notes on Megapnosaurus and 'Syntarsus' (Theropoda: Coelophysidae)
, 2022 The genus name Syntarsus Raath 1969 is preoccupied by the genus Syntarsus Fairmaire 1869. The replacement name Megapnosaurus Ivie et al. 2001 was proposed but its usage is inconsistent due to both controversy on the validity of the nomenclatural act proposing Megapnosaurus and possible synonymy between it and Coelophysis Cope 1889.
McDavid, Skye N, Bugos, Jeb E
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Journal of Anatomy, Volume 247, Issue 3-4, Page 790-818, September/October 2025.A combined approach of osteology and histology was used to examine the cheek regions of dinosaurs. Strong evidence was found for a soft tissue in this region connecting the zygoma to the mandible, here named the ‘exoparia’. Abstract Unlike mammals, reptiles typically lack large muscles and ligaments that connect the zygoma to the mandible.
Henry S. Sharpe +7 more
wiley +1 more source
, 1982 THEROPODA incertae sedis Fig. 6 Material: Teeth: UCM 39503 (UCMP-V5711) H 3.2 mm, W 1.8 mm; UCM 45063 (UCMP-V5620) H 2.8 mm, W 1.8 mm; UCMP 124986 (UCMP-V73087) H 1.6 mm, W 1.3 mm; UCMP 124987 (UCMP-V73087) H 2.8 mm, W 2.2 mm; and UCMP 124988 (UCMP-V73087) H 2.6 mm, W 2 mm.
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Systematic Entomology, Volume 50, Issue 3, Page 630-645, July 2025.We describe †Cretovelona orussopteryx n. gen. & sp. from Kachin amber. The fossil is examined with synchrotron scanning and integrated into an existing morphological data set for Orussoidea. This fossil parasitoid wasp displays a unique character combination demonstrating intermediate conditions in evolving the complex features employed in echo ...
Lars Vilhelmsen +4 more
wiley +1 more source
Journal of Anatomy, Volume 246, Issue 6, Page 948-973, June 2025.The study constructs a 3D whole‐body biomechanical model of the Late Triassic archosaurian reptile Lagosuchus talampayensis, which includes reconstructions of the hindlimb musculature. The process of constructing the model revealed that numerous limb bones curated with the main specimens are from other, as‐yet‐undetermined archosaurs.
Alejandro Otero +2 more
wiley +1 more source
Andean Geology, 2009 Se presentan nuevos restos provenientes de estratos campaniano-maastrichtianos de la Formación Alien, en Salitral Ojo de Agua (Río Negro, Argentina), los cuales son asignables a Alvarezsauridae indet.
Leonardo Salgado +3 more
doaj
PeerJ, 2015 Megaraptorid theropods were an enigmatic group of medium-sized predatory dinosaurs, infamous for the hypertrophied claw on the first manual digit. Megaraptorid dentition is largely restricted to isolated teeth found in association with skeletal parts; however, thein situmaxillary dentition ofMegaraptorwas recently described.
White, Matt A. +4 more
openaire +6 more sources