Floras And The Evolutionary Dynamics Across The Permian Triassic Boundary Nearby The Border Of Guizhou And Yunnan South China

This book documents timely and systematically marvelous fossils (plants and sporopollen) related to the biggest mass extinction of the Permian–Triassic transition. Numerous beautiful pictures and comprehensive records on the plants of this unique and critical interval of geohistory are presented in this book. It greatly contributes to understanding of the Permian–Triassic plant diversity and evolution. For geologists, it is important to understand the Permian–Triassic crisis, and for students, it is attractive to learn about the plants’ response to palaeoclimatic changes.

Permian and Triassic are the interval known for the integration and separation of Pangea, the closure of the Palaeotethys and the opening of Mesotethys. They were associated with a series of worldwide events including the Late Palaeozoic glaciation and succeeding extensive evaporatic and reef formations, the end-Palaeozoic regression, strong orogenies and widespread volcanism and magmatism, and finally, the Permo-Triassic biotic macro-extinction. These events resulted in the formation of enormous reserves of coal, petroleum, evaporites, phosphorites and metal resources. The Permian and Triassic thus constitutes a time interval particularly important both for understanding the Earth's history and for exploration of mineral resources. The book aims to reconstruct the Permian-Triassic history of Pangea, Palaeo-Tethys and Palaeo-Pacific through stratigraphic, palaeogeographic and other interdisciplinary approaches. It consists of two parts. Part 1 deals with regional stratigraphy of Tethyan and western Circum-Pacific countries which is the basis for interregional correlation, and palaeogeography. Part 2 deals with the biotic evolution at the Permian-Triassic transition, focusing on the major invertebrate groups: foraminifers, radiolarians, brachiopods, ammonoids and conodonts.

This book documents timely and systematically marvelous fossils (plants and sporopollen) related to the biggest mass extinction of the Permian-Triassic transition. Numerous beautiful pictures and comprehensive records on the plants of this unique and critical interval of geohistory are presented in this book. It greatly contributes to understanding of the Permian-Triassic plant diversity and evolution. For geologists, it is important to understand the Permian-Triassic crisis, and for students, it is attractive to learn about the plants' response to palaeoclimatic changes.

The culmination of more than fifty years of research by the foremost living expert on plant classification, Diversity and Classification of Flowering Plants is an important contribution to the field of plant taxonomy. In the last decade, the system of classifying plants has been thoroughly revised. Instead of describing every individual family, Takhtajan includes descriptions in keys to families, which he calls "descriptive keys." The advantage of descriptive keys is that they give both the characteristic features of the families and their differences. The delimitation of families and orders drastically differs from the one accepted by the Englerian school and from the one accepted in Arthur Cronquist's system. Takhtajan favors the smaller, more natural families and orders, which are more coherent and better-defined, where characters are easily grasped, and which are more suitable for information retrieval and phylogenetic studies, including cladistic analysis (because it reduces polymorphic codings).

This book provides a wealth of high-quality scientific information on the patterns and processes of vegetation change across a broad range of spatial and temporal scales, concentrating on Southwestern China, mostly on the Yunnan region, and extending to the Yangtze River valley near the boundaries separating Chongqing, Sichuan and Guizhou.

This volume brings together state-of-the-art reviews of the non-biostratigraphic and biostratigraphic data that are used to define and correlate Permian time intervals. It includes analyses of Permian radio-isotopic ages, magnetostratigraphy, isotope-based stratigraphy and timescale-relevant biostratigraphy. It is the first book devoted to this subject and represents the cutting edge of Permian time-scale research.