A Lower Cambrian Edrioasterid, Stromatocystites Walcotti (with One Plate) PDF Download

Author: Charles Schuchert
Publisher:
ISBN:
Category : Archaeological expeditions
Languages : en
Pages : 20

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Author: Charles Schuchert
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 660

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Author:
Publisher:
ISBN:
Category : Geology, Stratigraphic
Languages : en
Pages : 278

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Author: Geological Survey of Great Britain
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 644

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Author: Geological Survey of Great Britain
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 370

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Author: William Henry Twenhofel
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 848

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Protozoa; Porifera; Coelenterata; Ctenophora; Worm phyla; Annelida; Bryozoa; Polyzoa; Phoronida; Brachiopoda; Mollusca; Annelida; Onychophora; Arthopoda; Echinoderma; Hemichordata; Conodontophoridia.

Author: Tom McCann
Publisher: Geological Society of London
ISBN: 9781862392458
Category : Science
Languages : en
Pages : 804

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Publishers Weekly Top 10 Best of the Year In her new collection, Story Prize finalist Maureen F. McHugh delves into the dark heart of contemporary life and life five minutes from now and how easy it is to mix up one with the other. Her stories are post-bird flu, in the middle of medical trials, wondering if our computers are smarter than us, wondering when our jobs are going to be outsourced overseas, wondering if we are who we say we are, and not sure what we'd do to survive the coming zombie plague. Praise for Maureen F. McHugh: "Gorgeously crafted stories."—Nancy Pearl, NPR "Hauntingly beautiful."—Booklist "Unpredictable and poetic work."—The Plain Dealer Maureen F. McHugh has lived in New York; Shijiazhuang, China; Ohio; Austin, Texas; and now lives in Los Angeles, California. She is the author of a Story Prize finalist collection, Mothers & Other Monsters, and four novels, including Tiptree Award-winner China Mountain Zhang and New York Times editor's choice Nekropolis. McHugh has also worked on alternate reality games for Halo 2, The Watchmen, and Nine Inch Nails, among others. io9 Best SF&F Books of 2011 Tiptree Award Honor List Philip K. Dick Award finalist Story Prize Notable Book

Author: D.A.T. Harper
Publisher: Geological Society of London
ISBN: 1862393737
Category : Science
Languages : en
Pages : 485

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The Early Palaeozoic was a critical interval in the evolution of marine life on our planet. Through a window of some 120 million years, the Cambrian Explosion, Great Ordovician Biodiversification Event, End Ordovician Extinction and the subsequent Silurian Recovery established a steep trajectory of increasing marine biodiversity that started in the Late Proterozoic and continued into the Devonian. Biogeography is a key property of virtually all organisms; their distributional ranges, mapped out on a mosaic of changing palaeogeography, have played important roles in modulating the diversity and evolution of marine life. This Memoir first introduces the content, some of the concepts involved in describing and interpreting palaeobiogeography, and the changing Early Palaeozoic geography is illustrated through a series of time slices. The subsequent 26 chapters, compiled by some 130 authors from over 20 countries, describe and analyse distributional and in many cases diversity data for all the major biotic groups plotted on current palaeogeographic maps. Nearly a quarter of a century after the publication of the ‘Green Book’ (Geological Society, London, Memoir12, edited by McKerrow and Scotese), improved stratigraphic and taxonomic data together with more accurate, digitized palaeogeographic maps, have confirmed the central role of palaeobiogeography in understanding the evolution of Early Palaeozoic ecosystems and their biotas.

Author: William I. Ausich
Publisher: Indiana University Press
ISBN: 0253351286
Category : Science
Languages : en
Pages : 474

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The dominant faunal elements in shallow Paleozoic oceans, echinoderms are important to understanding these marine ecosystems. Echinoderms (which include such animals as sea stars, crinoids or sea lilies, sea urchins, sand dollars, and sea cucumbers) have left a rich and, for science, extremely useful fossil record. For various reasons, they provide the ideal source for answers to the questions that will help us develop a more complete understanding of global environmental and biodiversity changes. This volume highlights the modern study of fossil echinoderms and is organized into five parts: echinoderm paleoecology, functional morphology, and paleoecology; evolutionary paleoecology; morphology for refined phylogenetic studies; innovative applications of data encoded in echinoderms; and information on new crinoid data sets.

Author: Ray Smith Bassler
Publisher:
ISBN:
Category : Edrioasteroidea
Languages : en
Pages : 16

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