FOSSILS OF BURGESS SHALE PB
Since its discovery in 1909 by Charles Doolittle Walcott, then Secretary of the Smithsonian Institution, the Burgess Shale in the Canadian Rocky Mountains has fascinated both scientists and the public with its plethora of weird wonders - life forms of the past so unfamiliar they cannot easily be assigned to known taxonomic groups. This century's most significant invertebrate fossil discovery, the Burgess Shale provides an unprecedented window into the explosive evolution during the Cambrian period that began about 540 million years ago, one of the most enigmatic episodes in the history of life. This book provides the first comprehensive set of illustrations of the extraordinary life forms revealed in the Burgess Shale. In addition to the more common fossilized hard skeletons, the Burgess Shale preserved the soft parts of these organisms, which provide a key to understanding the early evolution of the major groups of animals that inhabit the earth today. The Fossils of the Burgess Shale shows much remarkable detail - including digestive tracts and other internal organs - of creatures preserved in particles of mud fine enough to penetrate every crack and unevenness. The book begins with the history of exploration and research in the Burgess Shale, the geologic setting and preservation of the fossils, and a discussion of the Cambrian radiation, the period when almost all the major phyla of animals evolved. These introductory chapters are followed by 199 high-quality photographs and line drawings with detailed species accounts that describe important features of each specimen, as well as the ecology and taxonomy of each group. A complete list of all currently accepted species described fromthe Burgess Shale and a comprehensive bibliography follow the illustrations. The Fossil of the Burgess Shale is a compendium of fascinating Cambrian treasures that offer a rare glimpse into the nature of early life on our planet. They have figured prominently in recent evolution
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algae Amiskwia Ancalagon Anomalocaris appendages assemblage in rerms atrached atthtopods Aysheaia brachiopods btian Btiggs Btitish Columbia Burgess Shale animals Burgess Shale assemblage Burgess Shale fossils burtows Cambtian radiation Cambtian Srephen Formation Canadaspis carapace Chengjiang Fauna complere consisred Conway Mortis demosponge desctibed Desctiption Dinomischus duting Ediacaran Eldonia evidence exrending Formation Burgess Shale Fossil Ridge ftom the Burgess ftont Geological Gogia gtoup Hallucigenia Hazelia Illustration impottant reference Isham reconsrruction larer Leanchoilia lefr limbs Lower Cambtian maretial merers Middle Cambtian Srephen Mount Srephen Naraoia Nore numbers of individuals Occurrence Olenoides otiginal Ottoia Paleontology Phylum Pikaia posretior preserved ptiapulids ptobably ptoboscis ptoject Ptopottion of toral ptovide Rasetti relared represenred rerms of numbers Resser Rigby Scenella sediment segmenred seties Sidneyia Simonetra Smithsonian sofr-bodied species specimen spicules spines sponge Srephen Formation Burgess sttuctures suggesrs thtough tocks toral Burgess Shale trace fossils ttilobires ttunk Tuzoia USNM Vauxia Walcott Quarry Wapkia Waptia warer Whittington Wiwaxia Yohoia