Re: [dinosaur] Siamraptor, new carcharodontosaurian theropod from Lower Cretaceous of Thailand (free pdf)

Some Siamraptor news items:

https://urldefense.proofpoint.com/v2/url?u=https-3A__www.smithsonianmag.com_science-2Dnature_newly-2Ddiscovered-2Ddinosaur-2Dwas-2Dgiant-2Dshark-2Dtooth-2Dpredator-2Drival-2Dtyrannosaurs-2D180973304_&d=DwIFaQ&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=Ry_mO4IFaUmGof_Yl9MyZgecRCKHn5g4z1CYJgFW9SI&m=FP5W8XTRXmiJOpudMfwLFmwzIA89HdVM9bfpVsmjLKo&s=7qvI5_Nm7I74CPrDw56l5G-7NpQmMuAKaZMcBJMxArs&e= 

https://urldefense.proofpoint.com/v2/url?u=https-3A__www.nationalgeographic.com_science_2019_10_huge-2Dnew-2Dshark-2Dtoothed-2Ddinosaur-2Dsiamraptor-2Dfound-2Din-2Dthailand_&d=DwIFaQ&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=Ry_mO4IFaUmGof_Yl9MyZgecRCKHn5g4z1CYJgFW9SI&m=FP5W8XTRXmiJOpudMfwLFmwzIA89HdVM9bfpVsmjLKo&s=0wFEJsw0FIgbiTwd7b32aBH8pY90jIez9Ame7FjAfpo&e= 

https://urldefense.proofpoint.com/v2/url?u=https-3A__phys.org_news_2019-2D10-2Dsiamraptor-2Dsuwati-2Dspecies-2Dgiant-2Dpredatory.html&d=DwIFaQ&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=Ry_mO4IFaUmGof_Yl9MyZgecRCKHn5g4z1CYJgFW9SI&m=FP5W8XTRXmiJOpudMfwLFmwzIA89HdVM9bfpVsmjLKo&s=bzZeBBH_YSVeUBTBqpO8N8Rcd60OsDM_-0ZJNw5SfcE&e= 

https://urldefense.proofpoint.com/v2/url?u=https-3A__cosmosmagazine.com_palaeontology_early-2Dcretaceous-2Dpredator-2Ddiscovered-2Din-2Dthailand&d=DwIFaQ&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=Ry_mO4IFaUmGof_Yl9MyZgecRCKHn5g4z1CYJgFW9SI&m=FP5W8XTRXmiJOpudMfwLFmwzIA89HdVM9bfpVsmjLKo&s=JyJbdblau2SC9WquTQbb9DLSXWUM13CSyInN8krqbzo&e= 

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On Wed, Oct 9, 2019 at 11:01 AM Ben Creisler <[email protected]> wrote:

>
> Ben Creisler
> [email protected]
>
> A new paper in open access PLoS ONE:
>
> Siamraptor suwati gen. et sp. nov.
>
> Duangsuda Chokchaloemwong, Soki Hattori, Elena Cuesta, Pratueng
> Jintasakul, Masateru Shibata & Yoichi Azuma (2019)
> A new carcharodontosaurian theropod (Dinosauria: Saurischia) from the
> Lower Cretaceous of Thailand.
> PLoS ONE 14(10): e0222489
> doi: https://urldefense.proofpoint.com/v2/url?u=https-3A__doi.org_10.1371_journal.pone.0222489&d=DwIFaQ&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=Ry_mO4IFaUmGof_Yl9MyZgecRCKHn5g4z1CYJgFW9SI&m=FP5W8XTRXmiJOpudMfwLFmwzIA89HdVM9bfpVsmjLKo&s=WNKFFfYGuhVKdpjwI-5yd5DFXGlV9kEESHZq6TguCRc&e= 
> https://urldefense.proofpoint.com/v2/url?u=https-3A__journals.plos.org_plosone_article-3Fid-3D10.1371_journal.pone.0222489&d=DwIFaQ&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=Ry_mO4IFaUmGof_Yl9MyZgecRCKHn5g4z1CYJgFW9SI&m=FP5W8XTRXmiJOpudMfwLFmwzIA89HdVM9bfpVsmjLKo&s=04e9wAR_QvHgjfXjbkz-4dBfwmviG1u7XmkVDEwTul8&e= 
>
> Free pdf:
>
> https://urldefense.proofpoint.com/v2/url?u=https-3A__journals.plos.org_plosone_article_file-3Fid-3D10.1371_journal.pone.0222489-26type-3Dprintable&d=DwIFaQ&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=Ry_mO4IFaUmGof_Yl9MyZgecRCKHn5g4z1CYJgFW9SI&m=FP5W8XTRXmiJOpudMfwLFmwzIA89HdVM9bfpVsmjLKo&s=dJOwIgYBYx85U2nCwCCjhdBh4LbLwTvONDTdlTEVPzc&e= 
>
> The isolated fossil remains of an allosauroid theropod from the Lower
> Cretaceous Khok Kruat Formation of Khorat, Thailand, are described in this
> study. Detailed observations support the establishment of a new
> allosauroid, Siamraptor suwati gen. et sp. nov. This new taxon is based on
> a composite cranial and postcranial skeleton comprising premaxilla,
> maxilla, jugal, surangular, prearticular, articular, vertebrae, manual
> ungual, ischium, tibia, and pedal phalanx. It is distinguished from other
> allosauroids by characters such as a jugal with straight ventral margin and
> dorsoventrally deep anterior process below the orbit, a surangular with a
> deep oval concavity at the posterior end of the lateral shelf and four
> posterior surangular foramina, a long and narrow groove along the suture
> between the surangular and the prearticular, an articular with a foramen at
> the notch of the suture with the prearticular, an anterior cervical
> vertebra with a pneumatic foramen (so-called ‘pleurocoel’) excavating
> parapophysis, and cervical and posterior dorsal vertebrae penetrated by a
> pair of small foramina bilaterally at the base of the neural spine. The
> presence of a huge number of camerae and pneumatopores in cranial and axial
> elements reveals a remarkable skeletal pneumatic system in this new taxon.
> Moreover, the phylogenetic analyses revealed that Siamraptor is a basal
> taxon of Carcharodontosauria, involving a new sight of the
> paleobiogeographical context of this group. Siamraptor is the best
> preserved carcharodontosaurian theropod in Southeast Asia, and it sheds new
> light on the early evolutionary history of Carcharodontosauria.
>
>
>
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