学术讲座

学术沙龙(12月11日)

发布时间:2023-12-07 打印

报告题目:Castle Bank and Anji: two remarkable Ordovician windows into sponge evolution

报告人:Joseph P. Botting 副研究员

报告人单位:英国威尔士国立自然博物馆

报告时间:2023年12月11日 上午10点

报告地点:南京古生物所图书馆三楼报告厅

主办:基础部、重点实验室、科技处、综合处、人教处

 

报告摘要: 

海绵是最古老的动物门之一,是许多现代和古代生态系统的主要组成部分。然而,它们的演化历史仍然鲜为人知。许多寒武纪早期以及中生代海绵动物类群与现代海绵动物非常相似,但事实证明,追踪这些现代动物群的起源极其困难。六射海绵尤其如此,它们最早的祖先(reticulosans)与现代谱系之间存在很大的演化缺失。现在,这一缺失开始被两个Konservat Lagerst?tten的研究所填补:中奥陶世城堡滩生物群(英国威尔士)和最新的浙江奥陶纪安吉动物群。两者都开始揭示主要现生谱系的起源,本次报告探讨了如何通过了解它们复杂的形态和生态历史来追溯它们的祖先。

Abstract. Sponges are one of the oldest animal phyla, and are a major component of many modern and ancient ecosystems. Their evolutionary history, however, remains poorly known. There are many faunas of early sponge groups from the Cambrian, and excellent Mesozoic faunas that closely resemble modern groups, but tracing the origins of those modern groups has proven extremely difficult. This is particularly true of the Hexactinellida, where there is a large gap between their earliest ancestors (reticulosans) and the modern lineages. This gap is starting to be filled by work on two Konservat-Lagerst?tten: the Middle Ordovician Castle Bank Biota (Wales, UK), and the latest Ordovician Anji Fauna of Zhejiang. Both are starting to reveal the origins of major living lineages, and this talk explores how to trace them back to their ancestors, by understanding both their complex morphology and their ecological history.

 

报告人介绍:


Joseph P. Botting 长期致力于早期生命,特别是海绵动物演化的相关研究。1997年从英国剑桥大学本科毕业,2000年获英国伯明翰大学博士学位,目前就职于英国威尔士国立博物馆),是中国科学院南京地质古生物研究所客座学者。迄今他已发表上百余篇学术论文,其中包括第一作者Nature、PNAS、Current Biology、Geology等重要刊物多篇。


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