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The Devonian was a peculiar period, characterized by simplified plate tectonic configurations, climatic overheating and widely flooded continents. The bloom of fishes and ammonoids, extensive reef complexes, and the conquest of land indicate major biosphere innovations, punctuated by many global events, including two of the biggest mass extinctions. The Devonian was the first system for which subdivisions were formally defined. This was achieved by significant advances in pelagic biostratigraphy. The chronostratigraphic framework and interdisciplinary techniques allow us to correlate intervals or sudden events across facies boundaries, in order to reconstruct the sedimentary and evolutionary history of the system with highest precision. This volume honors the lifetime stratigraphic achievements of Michael Robert House (1930-2002). Based on case studies from Europe, North Africa and North America, it shows how the combination of biostratigraphy, chemostratigraphy, magnetostratigraphy, sequence stratigraphy and event stratigraphy can contribute to a much deeper understanding of both regional and global environmental change.
This book provides a complete Phanerozoic story of palaeogeography, using new and detailed full-colour maps, to link surface and deep-Earth processes.
A lovely and loving piece of work, both an introduction to the hobby of fossil collecting and a beautifully illustrated field guide, with the author's drawings of some 450 fossil specimens and descriptions of 46 specific sites in Maryland, Delaware, Pennsylvania, Virginia, and West Virginia where they can be found. Annotation copyrighted by Book News, Inc., Portland, OR
Around 370 million years ago, a distant relative of a modern lungfish began a most extraordinary adventure—emerging from the water and laying claim to the land. Over the next 70 million years, this tentative beachhead had developed into a worldwide colonization by ever-increasing varieties of four-limbed creatures known as tetrapods, the ancestors of all vertebrate life on land. This new edition of Jennifer A. Clack's groundbreaking book tells the complex story of their emergence and evolution. Beginning with their closest relatives, the lobe-fin fishes such as lungfishes and coelacanths, Clack defines what a tetrapod is, describes their anatomy, and explains how they are related to other vertebrates. She looks at the Devonian environment in which they evolved, describes the known and newly discovered species, and explores the order and timing of anatomical changes that occurred during the fish-to-tetrapod transition.
With this informative guide, you can explore the mineral-rich regions of Pennsylvania and New Jersey, from the beaches to the mountains. It describes the states' best rockhounding sites and covers popular and commercial sites as well as numerous little-known areas. This handy guide also describes how to collect specimens, includes maps and directions to each site, and lists rockhound clubs in each state. Rockhounding Pennsylvania and New Jersey offers a complete introduction to this many-faceted hobby and is an invaluable sourcebook.
A survey of representative trilobite species from North America. It includes meticulous line drawings of 42 species, with information for each concerning classification, geologic range, and geographical distribution. Descriptions of probable life style, similar species, interesting features, etc. are also given. The 8 page, illustrated Introduction includes discussions of trilobite anatomy, growth, vision, lifestyles, locomotion, feeding, classification, and extinction. A brief "suggested reading" list is also offered.