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- Publications
- Influence
An exceptionally preserved Lower Cretaceous ecosystem
- Z. Zhou, P. Barrett, J. Hilton
- Geography, Medicine
- Nature
- 20 February 2003
Fieldwork in the Early Cretaceous Jehol Group, northeastern China has revealed a plethora of extraordinarily well-preserved fossils that are shaping some of the most contentious debates in… Expand
A NEW SPECIMEN OF APATOSAURUS AJAX (SAUROPODA: DIPLODOCIDAE) FROM THE MORRISON FORMATION (UPPER JURASSIC) OF WYOMING, USA
- P. Upchurch, Y. Tomida, P. Barrett
- Geology
- 2004
- 81
- 28
Dinosaur diversity and the rock record
- P. Barrett, A. Mcgowan, V. Page
- Biology, Medicine
- Proceedings of the Royal Society B: Biological…
- 22 July 2009
Palaeobiodiversity analysis underpins macroevolutionary investigations, allowing identification of mass extinctions and adaptive radiations. However, recent large-scale studies on marine… Expand
The evolution of sauropod feeding mechanisms
- P. Upchurch, P. Barrett
- Biology
- 1 August 2000
Introduction Sauropods were gigantic, long-necked, herbivorous dinosaurs, which dominated many Jurassic and Cretaceous terrestrial faunas. First appearing in the fossil record during the Early… Expand
A phylogenetic analysis of basal sauropodomorph relationships: Implications for the origin of sauropod dinosaurs2
- P. Upchurch, P. Barrett, P. Galton
- Biology
- 2007
New discoveries, revision of existing taxa and the application of cladistic analysis have all shed light on the relationships of basal sauropodomorphs. Nevertheless, the interrelationships proposed… Expand
- 89
- 18
A new hypothesis of dinosaur relationships and early dinosaur evolution
- M. Baron, D. Norman, P. Barrett
- Biology, Medicine
- Nature
- 23 March 2017
For 130 years, dinosaurs have been divided into two distinct clades—Ornithischia and Saurischia. Here we present a hypothesis for the phylogenetic relationships of the major dinosaurian groups that… Expand
Pterosaur distribution in time and space: an atlas
- P. Barrett, R. Butler, N. Edwards, A. Milner
- Geography
- 2008
Systematics and phylogeny of Stegosauria (Dinosauria: Ornithischia)
- Susannah C. R. Maidment, D. Norman, P. Barrett, P. Upchurch
- Biology
- 1 January 2008
Synopsis Stegosauria is a clade of ornithischian dinosaurs characterised by a bizarre array of dermal armour extending, in two parasagittal rows, from the cervical region to the end of the tail.… Expand
Homeotic effects, somitogenesis and the evolution of vertebral numbers in recent and fossil amniotes
- J. Müller, T. Scheyer, +5 authors M. Sánchez-Villagra
- Biology, Medicine
- Proceedings of the National Academy of Sciences
- 11 January 2010
The development of distinct regions in the amniote vertebral column results from somite formation and Hox gene expression, with the adult morphology displaying remarkable variation among lineages.… Expand
Estimating the effects of sampling biases on pterosaur diversity patterns: implications for hypotheses of bird/pterosaur competitive replacement
- R. Butler, P. Barrett, S. Nowbath, P. Upchurch
- Biology
- Paleobiology
- 8 July 2009
Abstract Pterosaurs were the first flying vertebrates and formed important components of terrestrial and marginal marine ecosystems during the Mesozoic. They became extinct during the latest… Expand
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