Results 31 to 40 of about 294 (136)

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

Cautionary tales on the use of proxies to estimate body size and form of extinct animals. [PDF]

open access: yesEcol Evol
Reconstructing the body size and form of extinct animals is of vital importance to our understanding of macroevolution and palaeontology. This is often done using anatomical proxies where extinct species are known only from fragmentary remains. However, there are many limitations influencing the selection of proxy taxa that are frequently overlooked ...
Gayford JH   +7 more
europepmc   +2 more sources

Abelisauridae Bonaparte & Novas 1985

open access: yesGeodiversitas
Published as part of Boschetto, Damien, Maggia, Bruno, Brito, Léa De, Borgese, Julie, Clavel, Didier, Chenet, Jean-Pierre, Roques, Thomas, Sèbe, Stéphane, Veyssières, Jean-Marc & Goedert, Jean, 2026, Unusual Abelisauridae tooth mark on an Abelisauridae tooth from the Upper Cretaceous of Cruzy (Hérault, France): implications for feeding behaviours, pp ...
Boschetto, Damien   +9 more
  +13 more sources

Building a predator: macroevolutionary patterns in the skull of abelisaurid dinosaurs. [PDF]

open access: yesProc Biol Sci
Abelisauridae is the most abundant and well-known clade of Gondwanan theropods, characterized by uniquely tall, robust and heavily ornamented skulls.
Pereyra EES   +3 more
europepmc   +2 more sources

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

Upper Cretaceous European theropod palaeobiodiversity, palaeobiogeography and the intra‐Maastrichtian faunal turnover: new contributions from the Iberian fossil site of Laño

open access: yesPapers in Palaeontology, Volume 8, Issue 1, January/February 2022., 2022
Abstract A total of 227 theropod teeth have so far been recovered from the upper Campanian Laño site (northern Iberian Peninsula). The teeth were studied for their qualitative and quantitative features. From the theropod sample found at Laño, seven morphotypes attributed to five taxa are identified: a medium to large abelisaurid (Arcovenator sp.) and ...
Erik Isasmendi   +5 more
wiley   +1 more source

The hand structure of Carnotaurus sastrei (Theropoda, Abelisauridae): implications for hand diversity and evolution in abelisaurids [PDF]

open access: yesPalaeontology, 2011
Abstract:  Carnotaurus sastrei is an abelisaurid dinosaur from the Late Cretaceous of Argentina that has very reduced, but robust, forelimbs and derived hands with four digits, including a large, conical‐shaped metacarpal IV lacking an articulation for a phalanx. The analysis presented in this work highlights a series of additional autapomorphies of C.
Ruiz Pérez, Javier   +3 more
  +6 more sources

An Early Cretaceous theropod dinosaur from Brazil sheds light on the cranial evolution of the Abelisauridae [PDF]

open access: yesComptes Rendus Palevol, 2020
Abelisaurid theropods dominated the predator role across Gondwana during the Late Cretaceous. They are characterized by highly reduced forelimbs and one of the most specialized cranial morphologies among carnivorous dinosaurs, exemplified by a broad skull, short rostrum, high occipital region, and highly kinetic intramandibular joint, suggestive of a ...
Zaher, Hussam   +4 more
openaire   +3 more sources

The postcranial skeleton of monolophosaurus jiangi (dinosauria: Theropoda) from the Middle Jurassic of Xinjiang, China, and a review of Middle Jurassic Chinese theropods [PDF]

open access: yes, 2010
The Middle Jurassic was a critical time in the evolution of theropod dinosaurs, highlighted by the origination and radiation of the large-bodied and morphologically diverse Tetanurae.
Benson, R. B. J.   +11 more
core   +1 more source

The geometry of taking flight: Limb morphometrics in Mesozoic theropods

open access: yesJournal of Morphology, Volume 276, Issue 2, Page 152-166, February 2015., 2015
ABSTRACT Theropoda was one of the most successful dinosaurian clades during the Mesozoic and has remained a dominant component of faunas throughout the Cenozoic, with nearly 10,000 extant representatives. The discovery of Archaeopteryx provides evidence that avian theropods evolved at least 155 million years ago and that more than half of the tenure of
Brandon P. Hedrick   +4 more
wiley   +1 more source

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