Atoposaurid crocodyliforms from the Khorat Group of Thailand: first record of Theriosuchus from Southeast Asia

作者: Komsorn Lauprasert , Chalida Laojumpon , Wanitchaphat Saenphala , Gilles Cuny , Kumthorn Thirakhupt

DOI: 10.1007/S12542-010-0071-Z

关键词: MesozoicGenusGeologyPaleontologyAtoposauridaeGroup (stratigraphy)TheriosuchusPlateauSoutheast asiaCretaceousPalaeontology

摘要: We describe a partial crocodilian skull from the Mesozoic non-marine sediments of Khorat Plateau Sao Khua Formation (Berriasian-Barremian) in northeastern Thailand and assign it to Theriosuchus grandinaris sp. nov. An isolated dentary Phu Kradung (latest Jurassic–Early Cretaceous) is also tentatively assigned genus Theriosuchus, an tooth Khok Kruat (Aptian-Albian) may belong this genus. The Thai fossils represent first unambiguous evidence presence outside Europe. Its occurrence increases known diversity neosuchian crocodyliforms Southeast Asia suggests that Atoposauridae had wide geographical distribution Late Jurassic Early Cretaceous.

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