Re: [dinosaur] Teyujagua (Lower Triassic archosauromorph) osteology and early archosauriform skull (free pdf)

The pdf is free (for now) from the article link...


https://urldefense.proofpoint.com/v2/url?u=https-3A__academic.oup.com_zoolinnean_advance-2Darticle-2Dabstract_doi_10.1093_zoolinnean_zlz093_5585773&d=DwIFaQ&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=Ry_mO4IFaUmGof_Yl9MyZgecRCKHn5g4z1CYJgFW9SI&m=RLq1ODjQr3-5GfdxlHQIjCXabS29aLt7ZiZfhwzVSVA&s=VTrkF0z8FhZaiQRzXe1YYhXtOU0d5a7G61FKIM8KVZQ&e= 


On Fri, Oct 11, 2019 at 8:21 AM Ben Creisler <[email protected]> wrote:

>
> Ben Creisler
> [email protected]
>
>
> A new paper:
>
> Felipe L. Pinheiro, Daniel De Simão-Oliveira & Richard J. Butler (2019)
> Osteology of the archosauromorph Teyujagua paradoxa and the early
> evolution of the archosauriform skull.
> Zoological Journal of the Linnean Society, zlz093
> doi: https://urldefense.proofpoint.com/v2/url?u=https-3A__doi.org_10.1093_zoolinnean_zlz093&d=DwIFaQ&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=Ry_mO4IFaUmGof_Yl9MyZgecRCKHn5g4z1CYJgFW9SI&m=RLq1ODjQr3-5GfdxlHQIjCXabS29aLt7ZiZfhwzVSVA&s=ubPNYO7hR5gBS9oZnfrppGMukJdHRJtS2zTmOa2w-yA&e= 
>
> https://urldefense.proofpoint.com/v2/url?u=https-3A__academic.oup.com_zoolinnean_advance-2Darticle-2Dabstract_doi_10.1093_zoolinnean_zlz093_5585773&d=DwIFaQ&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=Ry_mO4IFaUmGof_Yl9MyZgecRCKHn5g4z1CYJgFW9SI&m=RLq1ODjQr3-5GfdxlHQIjCXabS29aLt7ZiZfhwzVSVA&s=VTrkF0z8FhZaiQRzXe1YYhXtOU0d5a7G61FKIM8KVZQ&e= 
>
>
> Archosauriformes are a major group of fossil and living reptiles that
> include the crown group Archosauria (birds, crocodilians and their extinct
> relatives) and closely related taxa. Archosauriformes are characterized by
> a highly diagnostic skull architecture, which is linked to the predatory
> habits of their early representatives, and the development of extensive
> cranial pneumaticity associated with the nasal capsule. The evolution of
> the archosauriform skull from the more plesiomorphic configuration present
> ancestrally in the broader clade Archosauromorpha was, until recently,
> elusive. This began to change with the discovery and description of
> Teyujagua paradoxa, an early archosauromorph from the Lower Triassic Sanga
> do Cabral Formation of Brazil. Here, we provide a detailed osteological
> description of the holotype and, thus far, only known specimen of T.
> paradoxa. In addition to providing new details of the anatomy of T.
> paradoxa, our study also reveals an early development of skull pneumaticity
> prior to the emergence of the antorbital fenestra. We use these new data to
> discuss the evolution of antorbital openings within Archosauriformes.
> Reappraisal of the phylogenetic position of T. paradoxa supports previous
> hypotheses of a close relationship with Archosauriformes. The data
> presented here provide new insights into character evolution during the
> origin of the archosauriform skull.
>
>
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