报告题目：Mesozoic and Caenozoic continental biotas in Thailand
报告人：Dr. Bouziane Khalloufi
报告人单位：Mahasarakham University
时间：2023年12月12日（周二）下午3:00
报告地点：南京古生物所图书馆三楼报告厅
主办：中生代陆地生态系统研究中心、青促会、古生物学与油气地层应用重点实验室、科技处、人教处
报告简介
Thailand is formed of two main terranes, Sibumasu and Indochina, both originating from the margin of the Gondwana. They drifted northward separately, at different times, resulting in two distinct biogeographical histories, before colliding and merging from the Late Permian. A marine regression followed, leading to the prevalence of continental deposition from the Late Triassic. During the Mesozoic, most of these deposits are located in the north-east of the country, with a few limited occurrences in Central and Peninsular Thailand. The fossil fauna shows a wide diversity of aquatic and terrestrial vertebrates, with a hundred species recorded so far (of which half remain unnamed), and referred to sharks, lungfishes, coelacanths, dinosaurs, pterosaurs, crocodiles, and turtles, occasionally associated, among others, with bivalves, conchostracans and insects. Although deposited until the Late Cretaceous, Mesozoic sediments are very poor in fossils after the Aptian.
Caenozoic deposition is also predominantly continental. More widely distributed across the country, the sediments crop out in a series of intermontane basins resulting from active rifting beginning in the mid-late Palaeogene. These basins, which correspond to lacustrine to fluvio-deltaic systems, reflect the drift from a Mesozoic semi-arid climate to warm temperate and tropical conditions. As natural exposures are limited, the fossils are often associated with coal and hydrocarbon mining, or found during the excavation of water reservoirs. Vertebrates are represented by articulated or isolated remains of mammals (including hominoids), reptiles, a few amphibians, and freshwater fishes. Molluscs can agglomerate into dense beds in the north and the south, while an remarkable insect fauna has been reported from the west.
Palynomorphs and plant macroremains are continuously represented throughout the Mesozoic and Caenozoic, and include some of the largest fossil trunks ever reported, as well as rare occurrences of fruits and amber.
个人简介
Bouziane Khalloufi is paleontologist at the Palaeontological Research and Education Centre, Mahasarakham University, in Thailand. After graduating from the Mus um national d’Histoire naturelle, Paris (France), he worked at the Universidade do Estado do Rio de Janeiro, in Brazil, and in different museums and universities in France. His research focuses on the evolution of ray-finned fishes (actinopterygians) through their anatomy and phylogeny, with a special interest in Cretaceous and Miocene marine and freshwater forms. He is also working on theoretical aspects of cladistics and biogeography, and has conducted several fieldworks in North Africa, South America, Europe and Southeast Asia.
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