Komsorn Lauprasert1,2, Chalida Laojumpon1, Wanitchaphat Saenphala1, Gilles Cuny3, Kumthorn Thirakhupt4 and Varavudh Suteethorn5
1Department of Biology, Faculty of Science, Mahasarakham University, Khamrieng, Kantharawichai, Maha Sarakham, 44150, Thailand; Solo usuarios registrados se encuentran habilitados a visualizar los enlaces. Gracias por su visita.
2Palaeontological Research and Education Centre, Mahasarakham University, Khamrieng, Kantharawichai, Maha Sarakham, 44150, Thailand
3Natural History Museum of Denmark, University of Copenhagen, Øster Voldgade 5-7, 1350 Copenhagen K, Denmark
4Department of Biology, Faculty of Science, Chulalongkorn University, Bangkok, 10300, Thailand
5Department of Mineral Resources, Bureau of Geological Survey, Rama VI Road, Bangkok, 10400, Thailand
Abstract
We describe a partial crocodilian skull from the Mesozoic non-marine sediments of the Khorat Plateau Sao Khua Formation (Berriasian-Barremian) in northeastern Thailand and assign it to Theriosuchus grandinaris sp. nov. An isolated dentary from the Phu Kradung Formation (latest Jurassic–Early Cretaceous) is also tentatively assigned to the genus Theriosuchus, and an isolated tooth from the Khok Kruat Formation (Aptian-Albian) may belong to this genus. The Thai fossils represent the first unambiguous evidence of presence of Theriosuchus outside Europe. Its occurrence in Thailand increases the known diversity of neosuchian crocodyliforms from Southeast Asia and suggests that Atoposauridae had a wide geographical distribution from the Late Jurassic to the Early Cretaceous.
Keywords Atoposauridae - Early cretaceous - Thailand - Southeast Asia
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