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New material of Jiangxichelys ganzhouensis Tong & Mo, 2010 (Testudines: Cryptodira: Nanhsiungchelyidae) and its phylogenetic and palaeogeographical implications

Published online by Cambridge University Press:  11 April 2016

HAIYAN TONG ,
LU LI ,
CHAQING JIE  and
LAIPING YI
HAIYAN TONG*
Affiliation:
Palaeontological Research and Education Centre, Mahasarakham University, Kantarawichai, Mahasarakham 44150, Thailand Key Laboratory of Vertebrate Evolution and Human Origins of Chinese Academy of Sciences, Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Science Beijing 100044, China
LU LI
Affiliation:
Key Laboratory of Vertebrate Evolution and Human Origins of Chinese Academy of Sciences, Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Science Beijing 100044, China
CHAQING JIE
Affiliation:
Mineral Resources Administration of Ganzhou, 22 Changzheng Street, Ganzhou 341001, Jiangxi Province, China
LAIPING YI
Affiliation:
Ganzhou Museum, Ganzhou 341000, Jiangxi Province, China
*
†Author for correspondence: [email protected]
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Abstract

New material of Jiangxichelys ganzhouensis Tong & Mo, 2010, including four shells, is described, more fully documenting the morphology of the species. A partial skull associated with one of the shells is reported for the first time for that taxon. The new material reveals more similarities between J. ganzhouensis and ‘Zangerlia’ neimongolensis; the latter species is therefore included in the genus Jiangxichelys. The phylogenetic analyses continue to support the monophyly of the J. ganzhouensis, ‘Zangerlia’ neimongolensis, ‘Z.’ dzamynchondi and ‘Z.’ ukhaachelys clade and the separation of this clade from the type species of Zangerlia, Z. testudinimorpha as recently suggested. The close affinity between Jiangxichelys and ‘Zangerlia’ spp. provides new evidence for weak physical barriers against the dispersal of land vertebrates between southern China and northern China and Mongolia during latest Cretaceous times.

Keywords

TestudinesNahsiungchelyidaeJiangxichelysPhylogenypalaeobiogeography
Type
Original Articles
Information
Geological Magazine , Volume 154 , Issue 3 , May 2017 , pp. 456 - 464
Copyright
Copyright © Cambridge University Press 2016 

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