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咖啡沙龙第二百一十五期——Hominid paleodiversity in Africa and Asia

发表日期:2019-06-06来源:放大 缩小

报告人(Guest):Dr. Clément Zanolli

讨论主题(Topic: 非洲与亚洲人科化石的物种多样性

                  Hominid paleodiversity in Africa and Asia

时间(Time):2019.6.10(周一)下午15:00-16:30

                        2019.6.10 Monday 15:00-16:30pm

地点(Location):北楼702

                  (Room 702, North Building

 

报告人概况:

Clément Zanolli博士,法国国家科学研究中心研究员,目前就职于波尔多大学,《Journal of Human Evolution》副主编。近年来他使用高精度CT技术开展了一系列中新世-更新世古猿和古人类牙齿内部形态结构的研究,探讨了东亚、南亚和非洲南部人科化石的物种多样性,并对印尼的一些“魁人”(Meganthropus)化石材料的分类学和系统发育提出了新的见解。

内容概况:

借助高精度CT技术,定量化研究许多重要的人科牙齿化石材料的内部结构,将为大家揭示大量的依靠外部观察所不能提取的信息,这些信息可以帮助大家重建古人类物种多样性并观察某些性状的演化趋势。报告人将以印尼“魁人”和南非早期人属牙齿化石材料为例,展示依据牙齿内部结构观测和几何形态测量技术所得到的一些新发现,如对早更新世“魁人”和南非一些分类地位不明的早期人属重要化石的分类学修订、系统发育学探讨,并讨论同一时代内多个物种/线系共存的现象等。最后,报告人还将先容近来对亚洲直立人形态多样性的工作进展。

This presentation will illustrate how microtomographic imaging of some famous but also contentious fossil hominid teeth from Africa and Asia helps to revise the taxonomic diagnosis and to reconstruct phylogenetic relationships. The first example will focus on Africa fossils. Following recent fossil discoveries, the South African Plio-Pleistocene hominin diversity is increasing, with the inferred (co)existence of a number of species representing the three genera Australopithecus, Paranthropus and Homo. For the latter taxon, three Early Pleistocene species have been proposed, including H. habilis, H. erectus/ergaster, H. gautengensis, and one Middle Pleistocene taxon, H. naledi, was recently described. But is this taxonomic diversity real or the result of incorrect attributions to the genus Homo? In a second example, the issue of hominid paleodiversity in Asia will question the variability of Homo erectus and the potential existence of one or more unrecognized “mystery ape” taxa in the fossil record.

 

 

                                                                                                                                 脊椎动物演化与人类起源重点实验室

                                2019.6.6

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