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A new primitive eucryptodiran turtle from the Upper Jurassic Phu Kradung Formation of the Khorat Plateau, NE Thailand

Published online by Cambridge University Press:  19 June 2014

HAIYAN TONG*
Affiliation:
Palaeontological Research and Education Centre, Mahasarakham University, Kantarawichai, Mahasarakham 44150, Thailand
WILAILUCK NAKSRI
Affiliation:
Northeastern Institute of Petrified Wood and Mineral Resources, Nakhon Ratchasima Rajabhat University, Mueang, Nakhon Ratchasima 30000, Thailand
ERIC BUFFETAUT
Affiliation:
CNRS (UMR 8538), Laboratoire de Géologie de l’Ecole Normale Supérieure, 24 rue Lhomond, 75231 Paris Cedex 05, France
VARAVUDH SUTEETHORN
Affiliation:
Palaeontological Research and Education Centre, Mahasarakham University, Kantarawichai, Mahasarakham 44150, Thailand
SURAVECH SUTEETHORN
Affiliation:
Palaeontological Research and Education Centre, Mahasarakham University, Kantarawichai, Mahasarakham 44150, Thailand
UTHUMPORN DEESRI
Affiliation:
Biology Department, Faculty of Science, Mahasarakham University, Khamrieng, Kantarawichai District, Mahasarakham, 44150Thailand
SAITONG SILA
Affiliation:
Palaeontological Research and Education Centre, Mahasarakham University, Kantarawichai, Mahasarakham 44150, Thailand
PHORNPHEN CHANTHASIT
Affiliation:
Sirindhorn Museum, Department of Mineral Resources, Sahatsakhan, Kalasin, 46140Thailand
JULIEN CLAUDE
Affiliation:
Institut des Sciences de l’Evolution de Montpellier, UMR 5554 CNRS/UM2/IRD, 2, Place Eugène Bataillon, cc64, 34095 Montpellier Cedex 5, France
*
Author for correspondence: [email protected]

Abstract

A new genus and new species of primitive eucryptodiran turtle, Phunoichelys thirakhupti gen. et sp. nov., is described on the basis of shell remains from the lower part of the Phu Kradung Formation, at Phu Noi locality, Kalasin Province, NE Thailand. It is assigned to Xinjiangchelyidae on the basis of the marginals covering the lateral end of the costals and the anal scutes invading the hypoplastra. The new taxon is further characterized by a low and rounded carapace without a cervical notch; the whole carapace and plastron covered with a clear ornamentation consisting of tiny irregular vermiculated furrows; a complete neural series that reaches the suprapygal; a very wide and short cervical scute; relatively wide vertebral scutes; and a long first thoracic rib that extends along the full width of the first costal. The sutured plastron/carapace connection and the marginals covering the lateral end of the second to seventh costals suggest that the turtles from Phu Noi may be related to some primitive xinjiangchelyids from the Sichuan Basin. The discovery of a xinjiangchelyid turtle in the lower part of the Phu Kradung Formation supports a Late Jurassic age for that part of the formation.

Type
Original Articles
Copyright
Copyright © Cambridge University Press 2014 

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References

Anquetin, J. 2012. Reassessment of the phylogenetic interrelationships of basal turtles (Testudinata). Journal of Systematic Palaeontology 10, 345.Google Scholar
Brinkman, D., Eberth, D. A., Xu, X. & Wu, X.-C. 2013 a. Turtles from the Jurassic Shishugou Formation of the Junggar Basin, People's Republic of China, with comments on the basicranial region of basal Eucryptodires. In Morphology and Evolution of Turtles (eds Brinkman, D., Holroyd, P. A. & Gardner, J. D.), pp. 147–72. Springer.CrossRefGoogle Scholar
Brinkman, D. & Peng, J.-H. 1993 a. Ordosemys leios n. gen., n. sp., a new turtle from the Early Cretaceous of the Ordos Basin, Inner Mongolia. Canadian Journal of Earth Sciences 30, 2128–38.CrossRefGoogle Scholar
Brinkman, D. & Peng, J.-H. 1993 b. New material of Sinemys (Testudines, Sinemydidae) from the Early Cretaceous of China. Canadian Journal of Earth Sciences 30, 2139–52.Google Scholar
Brinkman, D., Yuan, C.-X., Ji, Q., Li, D. & You, H.-L. 2013 b. A new turtle from the Xiagou Formation (Early Cretaceous) of Changma Basin, Gansu Province, P. R. China. Palaeobiodiversity and Palaeoenvironments 93, 367–82.CrossRefGoogle Scholar
Buffetaut, E. & Suteethorn, V. 2007. A sinraptorid theropod (Dinosauria: Saurischia) from the Phu Kradung Formation of northeastern Thailand. Bulletin de la Société Géologique de France 178, 497502.Google Scholar
Buffetaut, E., Suteethorn, V. & Tong, H. 2006. Dinosaur assemblages from Thailand: a comparison with Chinese faunas. In Papers from the 2005 Heyuan International Dinosaur Symposium (eds , J., Kobayashi, Y., Huang, D. & Lee, Y.), pp. 1937. Beijing: Geological Publishing House.Google Scholar
Chanthasit, P. 2011. New theropod remains from the Phu Kradung Formation of Kalasin Province and a review of Late Jurassic theropod record in Thailand. Abstract. In World Conference on Paleontology and Stratigraphy, p. 34. Nakohn Rachasima: Nakhon Rachasima Rajabhat University.Google Scholar
Cope, E. D. 1868. On the origin of genera. Proceedings of the Academy of Natural Sciences of Philadelphia 20, 242–30.Google Scholar
Cuny, G., Liard, R., Deesri, U., Liard, T., Khamha, S. & Suteethorn, V. 2011. A new shark fauna from the Phu Kradung Formation (latest Jurassic – earliest Cretaceous) of Thailand. Abstract. In World Conference on Paleontology and Stratigraphy, pp. 1516. Nakhon Rachasima: Nakhon Rachasima Rajabhat University.Google Scholar
Cuny, G., Liard, R., Deesri, U., Liard, T., Khamha, S. & Suteethorn, V. 2013. Shark faunas from the Late Jurassic – Early Cretaceous of northern Thailand. Paläontologische Zeitschrift. Published online 3 December 2013. doi: 10.1007/s12542-013-0206-0.Google Scholar
Danilov, I. G., Averianov, A. O., Skutchas, P. P. & Rezvyi, A. S. 2006. Kirgizemys (Testudines, ‘Macrobaenidae’): new material from the Lower Cretaceous of Buryatia (Russia) and taxonomic revision. In Fossil Turtles Research, Vol. 1, Russian Journal of Herpetology (eds I. Danilov & J. F. Parham), pp. 46–62.Google Scholar
Danilov, I. G. & Parham, J. F. 2007. The type series of ‘Sinemyswuerhoensis, a problematic turtle from the Lower Cretaceous of China, includes at least three taxa. Palaeontology 50, 431–44.Google Scholar
Deesri, U., Lauprasert, K., Wongko, K. & Cavin, L. 2012. A new species of the ginglymodian fish Isanichthys (Actinopterygii, Holostei) from the Late Jurassic Phu Kradung Formation, northeastern Thailand. Acta Palaeontologica Polonica. Published online 22 August 2012. doi: 10.4202/app.2012.0013.Google Scholar
Gaffney, E. S. 1975. A phylogeny and classification of higher categories of turtles. Bulletin of the American Museum of Natural History 155, 387436.Google Scholar
Gaffney, E. S. 1990. The comparative osteology of the Triassic turtle Proganochelys . Bulletin of the American Museum of Natural History 194, 1263.Google Scholar
Gaffney, E. S. & Meylan, P. A. 1988. A phylogeny of turtles. In The Phylogeny and Classification of the Tetrapods (ed. Benton, M. J.), pp. 157219. Oxford: Clarendon Press.Google Scholar
Hirayama, R. 2006. Review of fossil turtles of Japan. Fossils 80, 4759.Google Scholar
Kaznyshkin, M. N., Nalbandyan, L. A. & Nessov, L. A. 1990. Middle and Late Jurassic turtles of Fergana (Kirghiz SSR). Ezhegodnik Vsesoyuznogo Paleontologicheskogo Obshchestva 33, 185204 (in Russian).Google Scholar
de Lapparent de Broin, F. 2004. A new Shachemydinae (Chelonii, Cryptodira) from the Lower Cretaceous of Laos: preliminary data. Comptes Rendus Palevol 3, 387–96.CrossRefGoogle Scholar
Linnaeus, C. 1758. Systema Naturae. Stockholm, 824 pp.Google Scholar
Matzke, A. T., Maisch, M. W., Sun, G. & Pfretzschner, H.-U. & Stöhr, H. 2004. A new xinjiangchelyid turtle (Testudines, Eucryptodira) from the Jurassic Qigu Formation of the southern Junggar Basin, Xinjiang, north-west China. Palaeontology 47, 1267–99.Google Scholar
Matzke, A. T., Maisch, M. W., Sun, G., Pfretzschner, H.-U. & Stöhr, H. 2005. A new Middle Jurassic xinjiangchelyid turtle (Testudines; Eucryptodira) from China (Xinjiang, Junggar Basin). Journal of Vertebrate Paleontology 25, 6370.Google Scholar
Nessov, L. A. 1995. On some Mesozoic turtles of the Fergana Depression (Kyrgyzstan) and Dahungar Alatau Ridge (Kazakhstan). Russian Journal of Herpetology 2, 134–41.Google Scholar
Peng, J.-H. & Brinkman, D. 1993. New material of Xinjiangchelys (Reptilia: Testudines) from the Late Jurassic Qigu Formation (Shishugou Group) of the Pingfengshan locality, Junggar Basin, Xinjiang. Canadian Journal of Earth Sciences 30, 2013–26.Google Scholar
Peng, G.-Z., Ye, Y., Gao, Y.-H., Shu, C.-K. & Jiang, S. 2005. Jurassic Dinosaur Faunas in Zigong. Sichuan People's Publishing House, China, 236 pp (in Chinese).Google Scholar
Rabi, M., Sukhanov, V. B., Egorova, V. N., Danilov, I. & Joyce, W. G. 2014. Osteology, relationships and ecology of Annemys (Testudines, Eucryptodira) from the Late Jurassic of Shar Teg, Mongolia and phylogenetic definition for Xinjiangchelyidae, Sinemydidae and Macrobaenidae. Journal of Vertebrate Paleontology 34, 327–52.Google Scholar
Rabi, M., Zhou, C.-F., Wings, O., Sun, G. & Joyce, W. G. 2013. A new xinjiangchelyid turtle from the Middle Jurassic of Xinjiang, China and the evolution of the basipterygoid process in Mesozoic turtles. BMC Evolutionary Biology 13, 203. doi: 10.1186/1471-2148-13-203.Google Scholar
Racey, A. & Goodall, J. G. S. 2009. Palynology and stratigraphy of the Mesozoic Khorat Group red bad sequences from Thailand. In Late Palaeozoic and Mesozoic Continental Ecosystems in SE Asia (eds Buffetaut, E., Cuny, G., Le Loeuff, J. & Suteethorn, V.), pp. 6984. Geological Society of London, Special Publication no. 315.Google Scholar
Sukhanov, V. B. 2000. Mesozoic turtles of Middle and Central Asia. In The Age of Dinosaurs in Russia and Mongolia (eds Benton, M. J., Shishkin, M. A., Unwin, D. M. & Kurochkin, E. N.), pp. 309–67. Cambridge: Cambridge University Press.Google Scholar
Sukhanov, V. B. 2006. An archaic turtle, Heckerochelys romani gen, et sp. nov., from the Middle Jurassic of Moscow region, Russia. In Fossil Turtles Research, Vol. 1, Russian Journal of Herpetology (eds I. Danilov & J. F. Parham), pp. 112–18.Google Scholar
Sukhanov, V. B. & Narmandakh, P. 2006. New taxa of Mesozoic turtles from Mongolia. In Fossil Turtle Research, Vol. 1, Russian Journal of Herpetology (eds I. Danilov & J. F. Parham), pp. 119–27.Google Scholar
Tong, H. & Brinkman, D. 2013. A new species of Sinemys (Testudines: Cryptodira: Sinemydidae) from the Early Cretaceous of Inner Mongolia, China. Palaeobiodiversity and Palaeoenvironments 93, 355–66.Google Scholar
Tong, H., Buffetaut, E. & Suteethorn, V. 2002. Middle Jurassic turtles from southern Thailand. Geological Magazine 139, 687–97.Google Scholar
Tong, H., Buffetaut, E. & Suteethorn, V. 2006. Isanemys, a new adocid turtle from the Sao Khua Formation (Early Cretaceous) of the Khorat Plateau, northeastern Thailand. In Fossil Turtle Research, Vol. 1, Russian Journal of Herpetology (eds I. Danilov & J. F. Parham), pp. 128–37.Google Scholar
Tong, H., Buffetaut, E., Suteethorn, V. & Srisuk, P. 2004. First carettochelyid turtle from the Lower Cretaceous of Thailand. Abstract. In 2nd EAVP Meeting (eds Ostal, O., Gregorova, R. & Ivanov, M.), p. 44. Brno: Moravian Museum.Google Scholar
Tong, H., Claude, J., Naksri, W., Suteethorn, V., Buffetaut, E., Khansubha, S., Wongko, K. & Yuangdetkla, P. 2009 a. Basilochelys macrobios n. gen. and n. sp., a large cryptodiran turtle from the Phu Kradung Formation (terminal Jurassic–basal Cretaceous) of the Khorat Plateau, NE Thailand. In Late Palaeozoic and Mesozoic Continental Ecosystems in SE Asia (eds Buffetaut, E., Cuny, G., Le Loeuff, J. & Suteethorn, V.), pp. 153–74. Geological Society of London, Special Publication no. 315.Google Scholar
Tong, H., Claude, J., Suteethorn, V., Naksri, W. & Buffetaut, E. 2009 b. Turtle assemblages of the Khorat Group (Late Jurassic–Early Cretaceous) of NE Thailand and their palaeobiogeographical significance. In Late Palaeozoic and Mesozoic Continental Ecosystems in SE Asia (eds Buffetaut, E., Cuny, G., Le Loeuff, J. & Suteethorn, V.), pp. 141–52. Geological Society of London, Special Publication no. 315.Google Scholar
Tong, H., Danilov, I., Ye, Y., Ouyang, H. & Peng, G.-Z. 2012 a. Middle Jurassic turtles from Sichuan Basin, China: a review. Geological Magazine 149, 675–95.Google Scholar
Tong, H., Danilov, I., Ye, Y., Ouyang, H., Peng, G.-Z. & Li, K. 2012 b. A revision of xinjiangchelyid turtles from the Late Jurassic of Sichuan Basin, China. Annales de Paléontologie 98, 73114.Google Scholar
Tong, H., Ji, S.-A. & Ji, Q. 2004. Ordosemys (Testudines: Cryptodira) from the Yixian Formation of Liaoning Province, Northeastern China: new specimens and systematic revision. American Museum Novitates 3438, 120.2.0.CO;2>CrossRefGoogle Scholar
Tong, H., Suteethorn, V., Claude, J., Buffetaut, E. & Jintasakul, P. 2005. The turtle fauna from the Khok Kruat Formation (Early Cretaceous) of Thailand. In Proceedings of the International Conference on Geology, Geotechnology and Mineral Resources of Indochina (GEOINDO 2005) (eds Wannakao, L., Youngme, W., Srisuk, K. & Lertsirivorakul, R.), pp. 610–14. Khon Kaen, Thailand: Khon Kaen University.Google Scholar
Ward, D. E. & Bunnag, D. 1964. Stratigraphy of the Mesozoic Khorat Group in northeastern Thailand. Reports of Investigation, Department of Mineral Resources 6, 195.Google Scholar
Wings, O., Rabi, M., Schneider, J. W., Schwermann, L., Sun, G., Chang-Fu, Z. & Joyce, W. G. 2012. An enormous Jurassic turtle bone bed from the Turpan Basin of Xinjiang, China. Naturwissenschaften 99, 925–35.Google Scholar
Ye, X.-K. 1973. Discovery of Plesiochelys from Upper Lufeng Series, Oshan, Yunnan and its stratigraphical significance. Vertebrata PalAsiatica 11, 160–4.Google Scholar
Ye, H.-K. 1986. A Jurassic turtle from Junggar, Xinjiang. Vertebrata PalAsiatica 24, 171–81.Google Scholar
Young, C.-C. & Chow, M.-C. 1953. New fossil reptiles from Szechuan, China. Acta Scientica Sinica 2, 216–43.Google Scholar