Results 101 to 110 of about 4,369 (218)
Basal abelisaurid and carcharodontosaurid theropods from the Lower Cretaceous Elrhaz Formation of Niger [PDF]
, 2008 We report the discovery of basal abelisaurid and carcharodontosaurid theropods from the mid Cretaceous (Aptian–Albian, ca. 112 Ma) Elrhaz Formation of the Niger Republic. The abelisaurid, Kryptops palaios gen. et sp.
Brusatte, S.L., Sereno, P.C.
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The Anatomical Record, Volume 309, Issue 6, Page 1451-1463, June 2026.Abstract Notosuchians were key components of western Gondwanan Cretaceous ecosystems in terrestrial predator niches and exhibited remarkable taxonomic and ecological diversity. Previous research has explored their physiology, metabolism, and histology, revealing varied growth patterns and life history strategies.
Tito Aureliano +5 more
wiley +1 more source
Building a Bird: Musculoskeletal Modeling and Simulation of Wing-Assisted Incline Running during Avian Ontogeny [PDF]
, 2018 Flapping flight is the most power-demanding mode of locomotion, associated with a suite of anatomical specializations in extant adult birds. In contrast, many developing birds use their forelimbs to negotiate environments long before acquiring “flight ...
Ashley M. Heers +4 more
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The dentition of tyrannosauroid theropods: a review
Discover GeoscienceTyrannosauroidea is a clade of early-diverging carnivorous coelurosaur theropods known from the Middle Jurassic to Late Cretaceous that includes the eponymous Tyrannosaurus rex and its closest relatives. One of the most notable diagnostic features of the
Carlos A. Hernández-Luna +3 more
doaj +1 more source
The anatomy of Dryptosaurus aquilunguis (Dinosauria:Theropoda) and a review of its tyrannosauroid affinities [PDF]
, 2011 no ...
Benson, R.B.J. +2 more
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Hox Genes, Digit Identities and the Theropod/Bird Transition [PDF]
, 2005 Vargas and Fallon (2005) propose that Hox gene expression patterns indicate that the most anterior digit in bird wings is homologous to digit 1 rather than to digit 2 in other amniotes. This interpretation is based on the presence of Hoxd13 expression in
Galis, F., Kundrat, M., Metz, J.A.J.
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An Antarctic cretaceous theropod [PDF]
, 1996 Fil: Brandoni de Gasparini, Zulma Nélida. División Paleontología Vertebrados. Facultad de Ciencias Naturales y Museo.
Molnar, R.E. +2 more
openaire
Evidence for avian intrathoracic air sacs in a new predatory dinosaur from Argentina.
PLoS ONE, 2008 BackgroundLiving birds possess a unique heterogeneous pulmonary system composed of a rigid, dorsally-anchored lung and several compliant air sacs that operate as bellows, driving inspired air through the lung.
Paul C Sereno +5 more
doaj +1 more source
A NEW DINOSAUR TRACKSITE IN THE LATE ALBIAN OF ISTRIA, CROATIA
Rivista Italiana di Paleontologia e Stratigrafia, 2007 A new site with dinosaur footprints has been found in the upper Albian sediments of Istria, Croatia. The site was discovered near the city of Pula, at the Zlatne Stijene locality.
ALEKSANDAR MEZGA +3 more
doaj +1 more source
Developmental patterns and variation among early theropods [PDF]
Journal of Anatomy, 2018 AbstractUnderstanding ontogenetic patterns is important in vertebrate paleontology because the assessed skeletal maturity of an individual often has implications for paleobiogeography, species synonymy, paleobiology, and body size evolution of major clades.
openaire +2 more sources