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Re: Tetanurae (Dinosauria: Theropoda).phylogeny



Received, thanks!

>>
>> On Thu, May 17, 2012 at 11:05 AM, Scott Hartman
>> <skeletaldrawing@gmail.com> wrote:
>>> Alas, J Syst Palaeo falls through the cracks of my journal access - if
>>> anyone could pass this along I'd be much obliged!
>>>
>>> -Scott
>>>
>>> On Thu, May 17, 2012 at 11:02 AM, Mickey Mortimer
>>> <mickey_mortimer111@msn.com> wrote:
>>>>
>>>> Metriacanthosauridae?  Yes!  Score one for following the rules.
>>>>
>>>> Mickey Mortimer
>>>>
>>>> ----------------------------------------
>>>>> Date: Thu, 17 May 2012 08:53:44 -0700
>>>>> From: bcreisler@gmail.com
>>>>> To: dinosaur@usc.edu
>>>>> Subject: Tetanurae (Dinosauria: Theropoda).phylogeny
>>>>>
>>>>> From: Ben Creisler
>>>>> bcreisler@gmail.com
>>>>>
>>>>> A paper in the new issue of Journal of Systematic Palaeontology:
>>>>>
>>>>> Matthew T. Carrano, Roger B. J. Benson & Scott D. Sampson (2012)
>>>>> The phylogeny of Tetanurae (Dinosauria: Theropoda).
>>>>> Journal of Systematic Palaeontology 10(2): 211-300
>>>>> DOI:10.1080/14772019.2011.630927
>>>>> http://www.tandfonline.com/doi/abs/10.1080/14772019.2011.630927
>>>>>
>>>>>
>>>>> Abstract
>>>>> Tetanuran theropods represent the majority of Mesozoic predatory
>>>>> dinosaur diversity and the lineage leading to extant Aves. Thus their
>>>>> history is relevant to understanding the evolution of dinosaur
>>>>> diversity, Mesozoic terrestrial ecosystems, and modern birds.
>>>>> Previously, the fragmentary and poorly sampled fossil record of basal
>>>>> (non-coelurosaur) tetanurans led to uncertainties regarding their
>>>>> basic interrelationships. This in turn prevented determining the
>>>>> relationships of many incompletely known taxa that nonetheless
>>>>> document a global radiation spanning more than 120 million years. We
>>>>> undertook an exhaustive examination of all basal tetanurans and all
>>>>> existing character data, taking advantage of recent discoveries and
>>>>> adding new morphological, temporal and geographic data. Our cladistic
>>>>> analysis of 61 taxa achieved significantly improved phylogenetic
>>>>> resolution. These results position several ‘stem’ taxa basal to a
>>>>> succession of monophyletic clades (Megalosauroidea, Allosauroidea and
>>>>> Coelurosauria). Megalosauroids include nearly 20 taxa arrayed amongst
>>>>> a basalmost clade (Piatnitzkysauridae, fam. nov.) and the sister taxa
>>>>> Spinosauridae and Megalosauridae; the latter includes two subfamilies,
>>>>> Megalosaurinae and Afrovenatorinae subfam. nov. Allosauroidea contains
>>>>> a diverse Metriacanthosauridae (= Sinraptoridae), Neovenatoridae,
>>>>> Carcharodontosauridae and a reduced Allosauridae. Finally, we assessed
>>>>> more than 40 fragmentary forms and hundreds of additional reported
>>>>> tetanuran occurrences. Tetanuran evolution was characterized by
>>>>> repeated acquisitions of giant body size and at least two general
>>>>> skull forms, but few variations in locomotor morphology. Despite
>>>>> parallel diversification of multiple lineages, there is evidence for a
>>>>> succession of ‘dominant’ clades. Tetanurae first appeared by the Early
>>>>> Jurassic and was globally distributed by the Middle Jurassic. Several
>>>>> major clades appeared prior to the breakup of Pangaea; as such their
>>>>> absence in specific regions, and at later times, must be due to poor
>>>>> sampling, dispersal failure and/or regional extinction. Finally, we
>>>>> outline a general perspective on Mesozoic terrestrial biogeography
>>>>> that should apply to most clades that appeared before the Late
>>>>> Jurassic.
>>>>
>>>
>>>
>>>
>>> --
>>> Scott Hartman
>>> Scientific Advisor/Technical Illustrator
>>> (307) 921-9750
>>> (608) 620-4030
>>> website: www.skeletaldrawing.com
>>> blog: http://skeletaldrawing.blogspot.com/
>
>
>
> --
> Scott Hartman
> Scientific Advisor/Technical Illustrator
> (307) 921-9750
> (608) 620-4030
> website: www.skeletaldrawing.com
> blog: http://skeletaldrawing.blogspot.com/



-- 
Scott Hartman
Scientific Advisor/Technical Illustrator
(307) 921-9750
(608) 620-4030
website: www.skeletaldrawing.com
blog: http://skeletaldrawing.blogspot.com/