From Greenhouse to Icehouse

The marine Eocene-Oligocene transition of 34 million years ago was a critical turning point in Earth's climatic history, when the warm, high-diversity "greenhouse" world of the early Eocene ceded to the glacial, "icehouse" conditions of the early Oligocene. This book surveys the advances in stratigraphic and paleontological research and isotopic analysis made since 1989 in regard to marine deposits around the world. In particular, it summarizes the high-resolution details of the so-called doubthouse interval (roughly 45 to 34 million years ago), which is critical to testing climatic and evolutionary hypotheses about the Eocene deterioration.

The authors' goals are to discuss the latest information concerning climatic and oceanographic change associated with this transition and to examine geographic and taxonomic patterns in biotic turnover that provide clues about where, when, and how fast these environmental changes happened. They address a range of topics, including the tectonic and paleogeographic setting of the Paleogene; specific issues related to the stratigraphy of shelf deposits; advances in recognizing and correlating boundary sections; trends in the expression of climate change; and patterns of faunal and floral turnover. In the process, they produce a valuable synthesis of patterns of change by latitude and environment.

Donald R. Prothero is a Research Associate in Vertebrate Paleontology at the Natural History Museum of Los Angeles County. He has taught college geology and paleontology for 40 years at institutions such as Columbia University, Vassar College, Knox College, and Pierce College, and currently at Cal Poly Pomona. For 27 years, he was Professor of Geology at Occidental College in Los Angeles and Lecturer in Geobiology at the California Institute of Technology in Pasadena. He earned his M.A., M.Phil., and Ph.D. degrees in geological sciences from Columbia University. He is the author of over 300 scientific papers published in leading journals and over 30 titles in geology, paleontology and evolutionary biology.