First hybodont shark assemblage from the Cretaceous of Malaysia: updated report

Authors

  • Teng Yu He Department of Geology, University of Malaya, Kuala Lumpur 50603, Malaysia
  • Masatoshi Sone Department of Geology, University of Malaya, Kuala Lumpur 50603, Malaysia
  • Ren Hirayama School of International Liberal Studies, Waseda University, Japan
  • Masataka Yoshida The University Museum, The University of Tokyo
  • Toshifumi Komatsu Faculty of Science, Kumamoto University, Japan
  • Suchada Khamha Palaeontological Research and Education Centre, Mahasarakham University, Thailand
  • Gilles Cuny UMR CNRS ENS 5276 LGL-TPE, Université Claude Bernard Lyon 1, France

Keywords:

Cretaceous, Heteroptychodus, Isanodus, Mukdahanodus, Malaysia

Abstract

A new hybodont assemblage was found in Cretaceous freshwater sediment of Peninsular Malaysia. This is the first discovery of Mesozoic nonmarine fishes from Malaysia. A faunal comparison with the Khorat Group has also been carried out. Approximately 100 specimens were prepared and examined in this study. The Malaysian material provides a finer understanding of morphological variation in the teeth of freshwater hybodont sharks from Southeastern Asia, as well as of their distribution. It points out for the first time to a biostratigraphical correlation between the Cretaceous freshwater deposits in Peninsular Malaysia with those of the Khorat Group in Thailand.

References

Cuny, G., Cavin, L. and Suteethorn, V. 2009. A new hybodont with a cutting dentition from the Lower Cretaceous of Thailand. Cretaceous Research 30, 515-520.

Cuny, G., Laojumpon, C., Cheychiw, O. and Lauprasert, K. 2010. Fossil vertebrate remains from Kut Island (Gulf of Thailand, Early Cretaceous). Cretaceous Research 31, 415-423.

Cuny, G., Suteethorn, V., Khamha, S., Buffetaut, E. and Philippe, M. 2006. A new hybodont shark assemblage from the Lower Cretaceous of Thailand. Historical Biology 18(1), 21-31

Khamha, S., Cuny, G. and Lauprasert, K. 2016. Revision of Isanodus paladeji (Elasmobranchii, Hybodontiformes) from the Lower Cretaceous of Thailand. Palaontol Z 90(3), 533-541

Teng, Y. H., Sone, M., Hirayama, R., Komatsu, T. and Yoshida, M. 2015. First Cretaceous fish fauna from Malaysia: Preliminary report. Paper presented at the 12th Symposium on Mesozoic Terrestrial Ecosystem Shenyang, China.

Yabe, H. and Obata, T. 1930. On some fossil fishes from the Cretaceous of Japan. Japanese Journal of Geology and Geography 8, 1-8.

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Published

31-12-2017

Issue

Vol. 3 No. 2 (2017): JULY - DECEMBER

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Articles

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