Fossil Record 24(1): 33-47, doi: 10.5194/fr-24-33-2021
First occurrence of brachyopid temnospondyls in Southeast Asia and review of the Mesozoic amphibians from Thailand
expand article infoThanit Nonsrirach, Sita Manitkoon§, Komsorn Lauprasert|
‡ Faculty of Science, Mahasarakham University, Khamrieng, Mahasarakham 44150, Thailand§ Palaeontological Research and Education Centre, Mahasarakham University, Kantarawichai, Mahasarakham 44150, Thailand| Mahasarakham University, Mahasarakham, Thailand
Open Access

The non-marine Mesozoic sedimentary rocks of Thailand,which consist of the Indochina block and the Sibumasu block, have yieldedseveral terrestrial and aquatic vertebrate fossils, but only few amphibianremains have been reported. Here, we present an overview on the Thaiamphibian palaeo-diversity based on the literature, re-examination ofpublished material, new findings, and unpublished material. Thai amphibianfossil remains are assigned to Stereospondyli (Cyclotosauridae,Plagiosauridae, and Brachyopoidea) and Anura and were discovered from fourformations, ranging from the Upper Triassic to Lower Cretaceous of Thailand.The occurrence of Brachyopidae in Thailand, which are related to Chineseforms, supports the previous hypothesis of physical connections between theIndochina blocks and the Sibumasu block during the Mesozoic era.