报告题目：1. Time, space, sedimentary systems and some thoughts on geochemistry of why, or not, we have a fossil plant record.
2. Trust but verify do Karoo Basin rocks record the continental expression of the Mother of Mass Extinction?
报告人：Robert A. Gastaldo
Whipple-Coddington Professor of Geology Colby College
报告时间：7月12日（周四）上午10:00 -12:00
报告地点：图书馆三楼报告厅
主办：古植物与孢粉室、科技处、组人处