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Re: Laquintasaura venezuelae, new ornithopod from Venezuela

Ben Creisler

Here's the full ref:

Paul M. Barrett, Richard J. Butler, Roland Mundil, Torsten M. Scheyer,
Randall B. Irmis and Marcelo R. Sánchez-Villagra (2014)
A palaeoequatorial ornithischian and new constraints on early dinosaur
Proceedings of the Royal Society B 22 September 2014 vol. 281 no. 1791 20141147
doi: 10.1098/rspb.2014.1147

Current characterizations of early dinosaur evolution are incomplete:
existing palaeobiological and phylogenetic scenarios are based on a
fossil record dominated by saurischians and the implications of the
early ornithischian record are often overlooked. Moreover, the timings
of deep phylogenetic divergences within Dinosauria are poorly
constrained owing to the absence of a rigorous chronostratigraphical
framework for key Late Triassic–Early Jurassic localities. A new
dinosaur from the earliest Jurassic of the Venezuelan Andes is the
first basal ornithischian recovered from terrestrial deposits directly
associated with a precise radioisotopic date and the first-named
dinosaur from northern South America. It expands the early
palaeogeographical range of Ornithischia to palaeoequatorial regions,
an area sometimes thought to be devoid of early dinosaur taxa, and
offers insights into early dinosaur growth rates, the evolution of
sociality and the rapid tempo of the global dinosaur radiation
following the end-Triassic mass extinction, helping to underscore the
importance of the ornithischian record in broad-scale discussions of
early dinosaur history.



Interview with Marcelo Sanchez (in German)


On Tue, Aug 5, 2014 at 4:13 PM, Ben Creisler <bcreisler@gmail.com> wrote:
> Ben Creisler
> bcreisler@gmail.com
> Looks like the embargo is over. Here's an English-language press
> release from the Natural History Museum:
> https://media.nhm.ac.uk/Press-releases/PRESS-RELEASE-First-Venezuelan-dinosaur-discovered-embargoed-until-00-01-BST-Wednesday-6-August-20-141.aspx
> The article in the Proceedings of the Royal Society B is still not online yet.
> News stories:
> http://news.discovery.com/animals/dinosaurs/first-venezuelan-dino-was-a-social-creature-140805.htm
> http://www.ibtimes.co.uk/laquintasaura-venezuelae-bird-hipped-dinosaur-first-be-discovered-venezuela-1459701
> On Tue, Aug 5, 2014 at 3:40 AM, Michael Lange
> <australiasaurus@yahoo.com.au> wrote:
>> Press release by the University of Zürich:
>> http://www.moneycab.com/mcc/2014/08/05/urspruengliche-dinosaurier-art-in-den-anden-von-venezuela-entdeckt/
>> Paul M. Barrett, Richard J. Butler, Roland Mundil, Torsten M. Scheyer, 
>> Randall B. Irmis and Marcelo R. Sánchez-Villagra. A Palaeoequatorial 
>> Ornithischian and New Constraints on Early Dinosaur Diversification. 
>> Proceedings of the Royal Society B,
>> August 2014. http://dx.doi.org/10.1098/rspb.2014.1147(apparently not 
>> published yet)