An early bothremydid from the Arlington Archosaur Site of Texas

Abstract Four turtle taxa are previously documented from the Cenomanian Arlington Archosaur Site (AAS) of the Lewisville Formation (Woodbine Group) in Texas. Herein, we describe a new side-necked turtle (Pleurodira), Pleurochayah appalachius gen. et sp. nov., which is a basal member of the Bothremyd...

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Autores principales:	Brent Adrian, Heather F. Smith, Christopher R. Noto, Aryeh Grossman
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/31146ee2d2db464fa0621ff0281700e4
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spelling	oai:doaj.org-article:31146ee2d2db464fa0621ff0281700e42021-12-02T16:51:26ZAn early bothremydid from the Arlington Archosaur Site of Texas10.1038/s41598-021-88905-12045-2322https://doaj.org/article/31146ee2d2db464fa0621ff0281700e42021-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-88905-1https://doaj.org/toc/2045-2322Abstract Four turtle taxa are previously documented from the Cenomanian Arlington Archosaur Site (AAS) of the Lewisville Formation (Woodbine Group) in Texas. Herein, we describe a new side-necked turtle (Pleurodira), Pleurochayah appalachius gen. et sp. nov., which is a basal member of the Bothremydidae. Pleurochayah appalachius gen. et sp. nov. shares synapomorphic characters with other bothremydids, including shared traits with Kurmademydini and Cearachelyini, but has a unique combination of skull and shell traits. The new taxon is significant because it is the oldest crown pleurodiran turtle from North America and Laurasia, predating bothremynines Algorachelus peregrinus and Paiutemys tibert from Europe and North America respectively. This discovery also documents the oldest evidence of dispersal of crown Pleurodira from Gondwana to Laurasia. Pleurochayah appalachius gen. et sp. nov. is compared to previously described fossil pleurodires, placed in a modified phylogenetic analysis of pelomedusoid turtles, and discussed in the context of pleurodiran distribution in the mid-Cretaceous. Its unique combination of characters demonstrates marine adaptation and dispersal capability among basal bothremydids.Brent AdrianHeather F. SmithChristopher R. NotoAryeh GrossmanNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-14 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Brent Adrian Heather F. Smith Christopher R. Noto Aryeh Grossman An early bothremydid from the Arlington Archosaur Site of Texas
description	Abstract Four turtle taxa are previously documented from the Cenomanian Arlington Archosaur Site (AAS) of the Lewisville Formation (Woodbine Group) in Texas. Herein, we describe a new side-necked turtle (Pleurodira), Pleurochayah appalachius gen. et sp. nov., which is a basal member of the Bothremydidae. Pleurochayah appalachius gen. et sp. nov. shares synapomorphic characters with other bothremydids, including shared traits with Kurmademydini and Cearachelyini, but has a unique combination of skull and shell traits. The new taxon is significant because it is the oldest crown pleurodiran turtle from North America and Laurasia, predating bothremynines Algorachelus peregrinus and Paiutemys tibert from Europe and North America respectively. This discovery also documents the oldest evidence of dispersal of crown Pleurodira from Gondwana to Laurasia. Pleurochayah appalachius gen. et sp. nov. is compared to previously described fossil pleurodires, placed in a modified phylogenetic analysis of pelomedusoid turtles, and discussed in the context of pleurodiran distribution in the mid-Cretaceous. Its unique combination of characters demonstrates marine adaptation and dispersal capability among basal bothremydids.
format	article
author	Brent Adrian Heather F. Smith Christopher R. Noto Aryeh Grossman
author_facet	Brent Adrian Heather F. Smith Christopher R. Noto Aryeh Grossman
author_sort	Brent Adrian
title	An early bothremydid from the Arlington Archosaur Site of Texas
title_short	An early bothremydid from the Arlington Archosaur Site of Texas
title_full	An early bothremydid from the Arlington Archosaur Site of Texas
title_fullStr	An early bothremydid from the Arlington Archosaur Site of Texas
title_full_unstemmed	An early bothremydid from the Arlington Archosaur Site of Texas
title_sort	early bothremydid from the arlington archosaur site of texas
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/31146ee2d2db464fa0621ff0281700e4
work_keys_str_mv	AT brentadrian anearlybothremydidfromthearlingtonarchosaursiteoftexas AT heatherfsmith anearlybothremydidfromthearlingtonarchosaursiteoftexas AT christopherrnoto anearlybothremydidfromthearlingtonarchosaursiteoftexas AT aryehgrossman anearlybothremydidfromthearlingtonarchosaursiteoftexas AT brentadrian earlybothremydidfromthearlingtonarchosaursiteoftexas AT heatherfsmith earlybothremydidfromthearlingtonarchosaursiteoftexas AT christopherrnoto earlybothremydidfromthearlingtonarchosaursiteoftexas AT aryehgrossman earlybothremydidfromthearlingtonarchosaursiteoftexas
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An early bothremydid from the Arlington Archosaur Site of Texas

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