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Re: Gryposaurus latidens (Ornithopoda: Hadrosauridae) osteology

Likewise, if anyone does have access to CJES a copy of the Gryposaurus
journal would be much appreciated...many thanks in advance


On Fri, Feb 10, 2012 at 12:42 AM, Scott Hartman
<skeletaldrawing@gmail.com> wrote:
> It appears I don't have access to the most recent year of CJES - if
> anyone could pass this along I'd be most appreciative.
> -Scott
> On Thu, Feb 9, 2012 at 6:37 PM, Ben Creisler <bcreisler@gmail.com> wrote:
>> From: Ben Creisler
>> bcreisler@gmail.com
>> A new online paper:
>> Albert Prieto-Márquez (2012)
>> The skull and appendicular skeleton of Gryposaurus latidens, a
>> saurolophine hadrosaurid (Dinosauria: Ornithopoda) from the early
>> Campanian (Cretaceous) of Montana, USA.
>> Canadian Journal of Earth Sciences (advance online publication)
>> doi: 10.1139/e11-069
>> http://www.nrcresearchpress.com/doi/abs/10.1139/e11-069
>> The osteology of the holotype and referred specimens of the
>> saurolophine hadrosaurid, Gryposaurus latidens, from the lower Two
>> Medicine Formation of Montana (USA), is described in detail. With an
>> estimated early Campanian (Late Cretaceous) age, this dinosaur is one
>> of the oldest known hadrosaurids. Gryposaurus latidens shows several
>> autapomorphies, including dentary tooth crowns, with an apicobasal
>> length/mesiodistal width ratio of 1.7–2.2, a single median carina, and
>> large marginal denticles in sections of the dental battery; deep and
>> oval depression on the posteroventral premaxillary surface; and, in
>> the context of Hadrosauridae, a shallow lacrimal process of the
>> rostral process of the jugal. Furthermore, G. latidens differs from G.
>> notabilis and G. monumentensis in having a broadly arcuate
>> anterolateral oral margin of the premaxilla, a posterior margin of the
>> narial fenestra that is wider than the dorsoventral depth of the
>> proximal region of the narial bar, with a nasal crest that rises above
>> the level of the frontals (in adults) and is located above the
>> posterior margin of the narial fenestra, and wide and shallow
>> posteroventral margin of the rostral process of the jugal, among other
>> characters. This study confirmed a previous hypothesis supporting G.
>> latidens as the sister taxon to a clade composed of the other species
>> of Gryposaurus.
> --
> Scott Hartman
> Scientific Advisor/Technical Illustrator
> (307) 921-9750
> (608) 620-4030
> website: www.skeletaldrawing.com
> blog: http://skeletaldrawing.blogspot.com/