《华南二叠——三叠纪之交的腕足类》——近10余年的化石采集(英文)

作者:何卫红; 石光荣; 张克信; 杨廷禄; 沈树忠; 张阳
来源:中国古生物学会第十二次全国会员代表大会暨第29届学术年会, 中国河南郑州, 2018-09-17.

摘要

The Permian-Triassic mass extinction was the most severe biodiversity crisis in the Earth history.The event killed over 90% brachiopod species globally.Collections and researches for the brachiopods of South China mainly began in the 20's of last century.During this period,numerous books have been published,with some Permian brachiopod fossils described and illustrated.Recently,a great book(Phanerozoic Brachiopod Genera of China) has systematically reviewed all the Phanerozoic brachiopod genera of China,including those Permian and Triassic elements.These publications provided massive information for further research on the taxonomy and biodiversity evolution of the Permian-Triassic brachiopods of South China.The Permian-Triassic mass extinction was turned out to have taken place with a complex process and varied with respect to different depositional settings.Therefore,the research on brachiopods in varied palaeogeographic settings is particularly important for us to understand the Permian-Triassic mass extinction.Most of the brachiopods documented in the published books in China were mainly collected from shallow-water carbonate facies.By comparison,brachiopods usually are sparse in deep-water facies and thus far less attention has been paid to them.Consequently,systematic knowledge of the Late Permian deep-water brachiopods is very limited throughout the world.Aiming to advance the research on organisms' biodiversity evolution across varied depositional settings,the authors organized dozens of students and began to collect brachiopods in the summer of 2002 and until 2016.Totally,over 10000 specimens have been collected mainly from the Changhsingian to lowermost Triassic rocks of 15 sections in South China.Most of these specimens were collected from deep-water facies,with wellpreserved information about ornamentation and internal structures,and so marvelous materials are presented.The book systematically describes 66 species in 34 genera,clarifies the morphological differences among some similar genera or species and corrects species names with synonymum or homonimum problems,based on their collections with well preservation and careful comparison with the published specimens.The book also summarizes the spatio-temporal differences of brachiopod body sizes and diversity evolutionacross varied paleogeographic settings,based on the well-constrained age correlation(at conodont/ammonoid zone level).Additionally,this book also discusses the morphological features and why those brachiopods survived the end-Permian mass extinction.The book timely provides a robust complement for the study on the latest Permian-earliest Triassic brachiopod taxonomy and biodiversity in different facies,especially from the deep-water facies,and will innovatively advance the understanding of the process and dynamics for the Great Dying.

  • 单位
    生物地质与环境地质国家重点实验室; 现代古生物学和地层学国家重点实验室; 东华理工大学