Basal turtle material from the Lower Cretaceous of Yakutia (Russia) filling the gap in the Asian record

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Basal turtle material from the Lower Cretaceous of Yakutia (Russia) filling the gap in the Asian record. / Skutschas, Pavel P.; Markova, Valentina D.; Kolchanov, Veniamin V.; Averianov, Alexander O.; Martin, Thomas; Schellhorn, Rico; Kolosov, Petr N.; Grigoriev, Dmitry V.; Vitenko, Dmitry D.; Obraztsova, Ekaterina M.; Danilov, Igor G.

In: Cretaceous Research, Vol. 106, 104186, 02.2020.

Research output: Contribution to journal › Article › peer-review

Author

Skutschas, Pavel P. ; Markova, Valentina D. ; Kolchanov, Veniamin V. ; Averianov, Alexander O. ; Martin, Thomas ; Schellhorn, Rico ; Kolosov, Petr N. ; Grigoriev, Dmitry V. ; Vitenko, Dmitry D. ; Obraztsova, Ekaterina M. ; Danilov, Igor G. / Basal turtle material from the Lower Cretaceous of Yakutia (Russia) filling the gap in the Asian record. In: Cretaceous Research. 2020 ; Vol. 106.

BibTeX

@article{4a8541e20fad4d95a88e19f562733775,

title = "Basal turtle material from the Lower Cretaceous of Yakutia (Russia) filling the gap in the Asian record",

abstract = "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.",

keywords = "Asia, Basisphenoid, Carotid system, Lower Cretaceous, Mesochelydia, Russia, Turtles, Vidian system, Yakutia, COMPLEX, CHINA, MICROANATOMY, PROBLEMATIC TURTLE, ANATOMY, JURASSIC TURTLE, CONDORCHELYS-ANTIQUA STERLI, MESOZOIC TURTLES, MORPHOLOGY, FOSSIL",

author = "Skutschas, {Pavel P.} and Markova, {Valentina D.} and Kolchanov, {Veniamin V.} and Averianov, {Alexander O.} and Thomas Martin and Rico Schellhorn and Kolosov, {Petr N.} and Grigoriev, {Dmitry V.} and Vitenko, {Dmitry D.} and Obraztsova, {Ekaterina M.} and Danilov, {Igor G.}",

note = "Publisher Copyright: {\textcopyright} 2019 Elsevier Ltd",

year = "2020",

month = feb,

doi = "10.1016/j.cretres.2019.07.016",

language = "English",

volume = "106",

journal = "Cretaceous Research",

issn = "0195-6671",

publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - Basal turtle material from the Lower Cretaceous of Yakutia (Russia) filling the gap in the Asian record

AU - Skutschas, Pavel P.

AU - Markova, Valentina D.

AU - Kolchanov, Veniamin V.

AU - Averianov, Alexander O.

AU - Martin, Thomas

AU - Schellhorn, Rico

AU - Kolosov, Petr N.

AU - Grigoriev, Dmitry V.

AU - Vitenko, Dmitry D.

AU - Obraztsova, Ekaterina M.

AU - Danilov, Igor G.

PY - 2020/2

Y1 - 2020/2

N2 - 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.

AB - 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.

KW - Asia

KW - Basisphenoid

KW - Carotid system

KW - Lower Cretaceous

KW - Mesochelydia

KW - Russia

KW - Turtles

KW - Vidian system

KW - Yakutia

KW - COMPLEX

KW - CHINA

KW - MICROANATOMY

KW - PROBLEMATIC TURTLE

KW - ANATOMY

KW - JURASSIC TURTLE

KW - CONDORCHELYS-ANTIQUA STERLI

KW - MESOZOIC TURTLES

KW - MORPHOLOGY

KW - FOSSIL

UR - http://www.scopus.com/inward/record.url?scp=85071315770&partnerID=8YFLogxK

UR - https://linkinghub.elsevier.com/retrieve/pii/S019566711930134X

UR - http://www.mendeley.com/research/basal-turtle-material-lower-cretaceous-yakutia-russia-filling-gap-asian-record

U2 - 10.1016/j.cretres.2019.07.016

DO - 10.1016/j.cretres.2019.07.016

M3 - Article

AN - SCOPUS:85071315770

VL - 106

JO - Cretaceous Research

JF - Cretaceous Research

SN - 0195-6671

M1 - 104186

ER -

ID: 45830926