Re: [dinosaur] Eocene birds from Mongolia (free pdf) + Cretaceous turtles from Yakutia

Ben Creisler
[email protected]

The free pdf of the first paper is now online:


Free pdf:

Sarah C. Hood, Chris R. Torres, Mark A. Norell & Julia A. Clarke (2019)
New Fossil Birds from the Earliest Eocene of Mongolia.
American Museum Novitates 3934:1-24 (2019).
doi:  https://urldefense.proofpoint.com/v2/url?u=https-3A__doi.org_10.1206_3934.1&d=DwIFaQ&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=Ry_mO4IFaUmGof_Yl9MyZgecRCKHn5g4z1CYJgFW9SI&m=jkUoDqBYD2FmTgXyWOqVp2uVNkkqv3pzsxkE4y92sCU&s=8RFGGHcHLSUGGaQ6ZGAMyGstDoDRZetvsD4x6d4j3-0&e= 
https://urldefense.proofpoint.com/v2/url?u=https-3A__bioone.org_journals_American-2DMuseum-2DNovitates_volume-2D2019_issue-2D3934_3934.1_New-2DFossil-2DBirds-2Dfrom-2Dthe-2DEarliest-2DEocene-2Dof-2DMongolia_10.1206_3934.1.short&d=DwIFaQ&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=Ry_mO4IFaUmGof_Yl9MyZgecRCKHn5g4z1CYJgFW9SI&m=jkUoDqBYD2FmTgXyWOqVp2uVNkkqv3pzsxkE4y92sCU&s=tdofF7BV6KK7i4Rtf4CTMdTqsdDtU3TQ2mRS0eyx-E0&e= 

Free pdf link:

https://urldefense.proofpoint.com/v2/url?u=http-3A__digitallibrary.amnh.org_handle_2246_6956&d=DwIFaQ&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=Ry_mO4IFaUmGof_Yl9MyZgecRCKHn5g4z1CYJgFW9SI&m=jkUoDqBYD2FmTgXyWOqVp2uVNkkqv3pzsxkE4y92sCU&s=FDS3pVTnzZF-tuvODStM8ERD9lRlhOUouHSbA2dOKTc&e= 



On Fri, Aug 9, 2019 at 11:07 AM Ben Creisler <[email protected]> wrote:

> Ben Creisler
> [email protected]
>
> Recent non-dino papers:
>
>
> Sarah C. Hood, Chris R. Torres, Mark A. Norell & Julia A. Clarke (2019)
> New Fossil Birds from the Earliest Eocene of Mongolia.
> American Museum Novitates 3934:1-24 (2019).
> doi:  https://urldefense.proofpoint.com/v2/url?u=https-3A__doi.org_10.1206_3934.1&d=DwIFaQ&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=Ry_mO4IFaUmGof_Yl9MyZgecRCKHn5g4z1CYJgFW9SI&m=jkUoDqBYD2FmTgXyWOqVp2uVNkkqv3pzsxkE4y92sCU&s=8RFGGHcHLSUGGaQ6ZGAMyGstDoDRZetvsD4x6d4j3-0&e= 
>
> https://urldefense.proofpoint.com/v2/url?u=https-3A__bioone.org_journals_American-2DMuseum-2DNovitates_volume-2D2019_issue-2D3934_3934.1_New-2DFossil-2DBirds-2Dfrom-2Dthe-2DEarliest-2DEocene-2Dof-2DMongolia_10.1206_3934.1.short&d=DwIFaQ&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=Ry_mO4IFaUmGof_Yl9MyZgecRCKHn5g4z1CYJgFW9SI&m=jkUoDqBYD2FmTgXyWOqVp2uVNkkqv3pzsxkE4y92sCU&s=tdofF7BV6KK7i4Rtf4CTMdTqsdDtU3TQ2mRS0eyx-E0&e= 
>
> NOTE: The paper should be posted in open access at the AMNH link in the
> near future:
>
> https://urldefense.proofpoint.com/v2/url?u=http-3A__digitallibrary.amnh.org_handle_2246_9&d=DwIFaQ&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=Ry_mO4IFaUmGof_Yl9MyZgecRCKHn5g4z1CYJgFW9SI&m=jkUoDqBYD2FmTgXyWOqVp2uVNkkqv3pzsxkE4y92sCU&s=3AkfGk56Xr93N8aLt4NGfPBM35atbhC4Nq7logeEXSo&e= 
>
>
> Understanding of the Asian early Paleogene avifauna is limited relative to
> that of North American and European avifauna of the same period. While
> major patterns of mammalian faunal exchange among these three regions
> across the Paleocene/Eocene boundary have been described, much less is
> known about the dynamics of bird diversity over the same time interval.
> Here, we report bird fossils from the earliest Eocene Bumban Member of the
> Naranbulag Formation in central Mongolia that add to the known record from
> Asia from just after this boundary. Most of this material, collected by the
> joint American Museum of Natural History/ Mongolia Academy of Sciences
> expeditions, is referable to a previously described taxon in
> Presbyornithidae (Anseriformes). However, five isolated elements are
> identified as comprising at least four species from at least three other
> major avian clades. While further inclusive phylogenetic analyses of each
> of these clades are necessary, the new remains represent possible earliest
> occurrences in Asia of these clades. The material includes a humerus and a
> furcula from shorebirds (Pan-Charadriiformes), a quadrate from a stem
> member of the flamingo-grebe lineage (Pan-Mirandornithes), and a coracoid
> from a stem galliform (Pangalliformes). We also report a humerus with
> uncertain phylogenetic affinities but with similarities to core Gruiformes.
> These new fossils expand our knowledge of the Asian avifauna during this
> time and have the potential to further inform our understanding of the
> early biogeography of these clades. The shorebird and flamingo-grebe
> material indicate that both these lineages were present in Asia by the
> earliest Eocene. The pan-mirandornithine quadrate provides insight into the
> early feeding ecology of the flamingo-grebe clade.
>
>
> ===
>
> Pavel P. Skutschas, Valentina D. Markova, Veniamin V. Kolchanov, Alexander
> O.Averianov, Thomas Martin, Rico Schellhorn, Petr N. Kolosov, Dmitry V.
> Grigoriev, Dmitry D. Vitenko, Ekaterina M. Obraztsova & Igor G. Danilov
> (2019)
> Basal turtle material from the Lower Cretaceous of Yakutia (Russia)
> filling the gap in the Asian record.
> Cretaceous Research (advance online publication)
> doi: https://urldefense.proofpoint.com/v2/url?u=https-3A__doi.org_10.1016_j.cretres.2019.07.016&d=DwIFaQ&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=Ry_mO4IFaUmGof_Yl9MyZgecRCKHn5g4z1CYJgFW9SI&m=jkUoDqBYD2FmTgXyWOqVp2uVNkkqv3pzsxkE4y92sCU&s=g4u3D3tDvtyorYFfGcbpv2XEhwH2LYoyN9Ftebv_9lA&e= 
> https://urldefense.proofpoint.com/v2/url?u=https-3A__www.sciencedirect.com_science_article_pii_S019566711930134X&d=DwIFaQ&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=Ry_mO4IFaUmGof_Yl9MyZgecRCKHn5g4z1CYJgFW9SI&m=jkUoDqBYD2FmTgXyWOqVp2uVNkkqv3pzsxkE4y92sCU&s=TFNLUlQVQwsidDkl906T3ERj4JSoyiIVZ1B4WQRlMnw&e= 
>
> This paper describes fragmentary turtle material (isolated basisphenoid,
> shell bones, humerus and ilium) from the Lower Cretaceous
> (Berriasian–Barremian) Teete locality in Yakutia (Eastern Siberia, Russia).
> All the material is attributed to one taxon of basal turtles (Mesochelydia
> indet.), based on the morphology of the basisphenoid, shell bones and
> humerus, as well as microanatomy and histology of the shell bones and
> humerus. Canals and foramina of the basisphenoid of this taxon revealed by
> CT scanning show an unusual pattern, which allows various interpretations
> and suggests a higher diversity of carotid and/or vidian systems in basal
> turtles than hitherto believed. Mesochelydia indet. from Teete fills an
> Early Cretaceous gap in the record of Asian basal turtles and represents
> the northernmost Asian non-marine turtle occurrence of the Mesozoic. All in
> all, the record of Asian basal turtles appears to be wider geographically
> and more complete temporally than previously thought. The Asian basal
> turtles are represented by at least three phylogenetic lineages: primitive
> Testudinata in the Late Triassic, primitive Mesochelydia from the Early
> Jurassic to the Early Cretaceous and primitive Perichelydia from the Middle
> Jurassic to the Late Cretaceous. The presence of such a primitive (Jurassic
> level) turtle in Teete supports the hypothesis that the vast territory of
> Siberia was a refugium for Jurassic vertebrate faunal elements. Details of
> the external morphology and histology of the Teete turtle material as well
> as its high paleolatitude occurrence argue in favor of its aquatic
> lifestyle.
>
>
>
>
>
> <https://urldefense.proofpoint.com/v2/url?u=http-3A__www.avg.com_email-2Dsignature-3Futm-5Fmedium-3Demail-26utm-5Fsource-3Dlink-26utm-5Fcampaign-3Dsig-2Demail-26utm-5Fcontent-3Dwebmail&d=DwIFaQ&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=Ry_mO4IFaUmGof_Yl9MyZgecRCKHn5g4z1CYJgFW9SI&m=jkUoDqBYD2FmTgXyWOqVp2uVNkkqv3pzsxkE4y92sCU&s=JQ7i9DUBZ6HYwATEA9FRkl5ji7jqSTAtVYU8X_DGv-o&e= > Virus-free.
> www.avg.com
> <https://urldefense.proofpoint.com/v2/url?u=http-3A__www.avg.com_email-2Dsignature-3Futm-5Fmedium-3Demail-26utm-5Fsource-3Dlink-26utm-5Fcampaign-3Dsig-2Demail-26utm-5Fcontent-3Dwebmail&d=DwIFaQ&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=Ry_mO4IFaUmGof_Yl9MyZgecRCKHn5g4z1CYJgFW9SI&m=jkUoDqBYD2FmTgXyWOqVp2uVNkkqv3pzsxkE4y92sCU&s=JQ7i9DUBZ6HYwATEA9FRkl5ji7jqSTAtVYU8X_DGv-o&e= >
> <#m_-3936441204267246078_DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>
>