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Re: New Metoposaurus species (temnospondyl amphibian) from Late Triassic of Portugal

The pdf is now free from the article link:


On Mon, Mar 23, 2015 at 1:32 PM, Ben Creisler <bcreisler@gmail.com> wrote:
> Ben Creisler
> bcreisler@gmail.com
> A new online paper:
> Stephen L. Brusatte, Richard J. Butler, Octávio Mateus & J. Sébastien
> Steyer (2015)
> A new species of Metoposaurus from the Late Triassic of Portugal and
> comments on the systematics and biogeography of metoposaurid
> temnospondyls.
> Journal of Vertebrate Paleontology (advance online publication)
> DOI:10.1080/02724634.2014.912988
> http://www.tandfonline.com/doi/full/10.1080/02724634.2014.912988#abstract
> Metoposaurids are a group of temnospondyl amphibians that filled
> crocodile-like predatory niches in fluvial and lacustrine environments
> during the Late Triassic. Metoposaurids are common in the Upper
> Triassic sediments of North Africa, Europe, India, and North America,
> but many questions about their systematics and phylogeny remain
> unresolved. We here erect Metoposaurus algarvensis, sp. nov., the
> first Metoposaurus species from the Iberian Peninsula, based on
> several new specimens from a Late Triassic bonebed in Algarve,
> southern Portugal. We describe the cranial and pectoral anatomy of M.
> algarvensis and compare it with other metoposaurids (particularly
> other specimens of Metoposaurus from Germany and Poland). We provide a
> revised diagnosis and species-level taxonomy for the genus
> Metoposaurus, which is currently represented with certainty by three
> European species (M. diagnosticus, M. krasiejowensis, M. algarvensis).
> We also identify cranial characters that differentiate these three
> species, and may have phylogenetic significance. These include
> features of the braincase and mandible, which indicate that
> metoposaurid skulls are more variable than previously thought. The new
> Portuguese bonebed provides further evidence that metoposaurids
> congregated in fluvial and lacustrine settings across their geographic
> range and often succumbed to mass death events. We provide an updated
> paleogeographic map depicting all known metoposaurid occurrences,
> which shows that these temnospondyls were globally distributed in low
> latitudes during the Late Triassic and had a similar, but not
> identical, paleogeographic range as phytosaurs.
> http://zoobank.org/urn:lsid:zoobank.org:pub:083C80C6-0AB6-49E1-A636-6A8BDBC06A47
> News story:
> http://news.sciencemag.org/paleontology/2015/03/giant-ancient-salamander-was-bigger-human
> Video of dig:
> https://www.youtube.com/watch?v=bzc6sP602Ps