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Silurian Paulinitid Jawed Polychaetes From Gotland
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Download or read book Polychaetes written by Gregory Rouse and published by Oxford University Press. This book was released on 2001-10-11 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: Polychaetes are very common marine worms belonging to the Annelid family that are of interest to marine biologists and invertebrate zoologists. The book presents an understanding of the biology of this group with many illustrations.
Book Synopsis Early Palaeozoic Biogeography and Palaeogeography by : D.A.T. Harper
Download or read book Early Palaeozoic Biogeography and Palaeogeography written by D.A.T. Harper and published by Geological Society of London. This book was released on 2014-01-27 with total page 485 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Proceedings of the Estonian Academy of Sciences, Geology by :
Download or read book Proceedings of the Estonian Academy of Sciences, Geology written by and published by . This book was released on 2006-06 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Annelida written by Greg W. Rouse and published by Oxford University Press. This book was released on 2022-01-14 with total page 449 pages. Available in PDF, EPUB and Kindle. Book excerpt: Annelids (the segmented worms) exist in a remarkably diverse range of mostly marine but also freshwater and terrestrial habitats, varying greatly in size and form. This text provides. This text begins with an introduction to the phylum and an outline of annelid taxonomy. The book describes their collection and the methods to ensure their optimal preservation, and provides an overview of anatomy with its relevant terminology. It includes the latest molecular phylogenomic evidence and is organised based on a new, robust phylogenetic hypothesis. It looks at groups which include Clitellata (comprising more than a third of total annelid diversity), Sipuncula, and Thalassematidae (formerly Echiura). It reflects the enormous amount of research on these organisms that has burgeoned since the millennium, principally due to their use as model organisms to address wider and more general evolutionary and ecological questions.
Download or read book Acta palaeontologica Polonica written by and published by . This book was released on 2001 with total page 618 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Carbonate Ramp Facies of the Klinteberg Formation, Wenlock-Ludlow Transition on Gotland, Sweden by : Peter Frykman
Download or read book Carbonate Ramp Facies of the Klinteberg Formation, Wenlock-Ludlow Transition on Gotland, Sweden written by Peter Frykman and published by . This book was released on 1989 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Annelida Basal Groups and Pleistoannelida, Sedentaria I by : Günter Purschke
Download or read book Annelida Basal Groups and Pleistoannelida, Sedentaria I written by Günter Purschke and published by Walter de Gruyter GmbH & Co KG. This book was released on 2019-03-18 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is the first in a series of 4 volumes in the Handbook of Zoology series about morphology, anatomy, reproduction, development, ecology, phylogeny and systematics of Annelida. This first volume covers members of the so-called basal radiation and the first part of Sedentaria. It is supplemented by chapters on the history of annelid research, their fossil record, and an introduction to the phylogeny of annelids and their position in the tree of life. In the latter chapter the history of their systematic is reviewed giving an almost complete picture of systematic-scientific progress especially in the past years which changed our view on annelid phylogeny dramatically. The most basal annelids, lately united as Palaeoannelida, represent two families of aberrant polychaetes formerly often suggested to be highly derived which now give us a fresh look on how the ancestral annelid may have looked like. These lack certain key characters such as nuchal organs and possess rather simple nervous systems which now likely represent primitive character states. In this basal radiation the first taxon of apparently unsegmented and achaetigerous animals is positioned, the Sipuncula. Most likely another group of platyhelminth-like and unsegmented and even chaeta-lees annelids, Lobatocerebridae falls into this basal radiation. The section of Sedentaria starts with Orbiniida, a taxon characterized by elongated, thread-like worms which do not have anterior appendages like palps and comprises several families representing members of the Meiofauna. These minute worms often inhabiting the interstitial spaces in marine sands are suggested to have evolved by progenesis. The second higher taxon is represented by Cirratuliformia comprising nine families of typical sedentary polychaetes each of which showing a remarkable variation of the annelid body plan. Members of this taxon usually exhibit many annelid characters but certain also lack the most typical prostomial appendages, the palps.
Book Synopsis The Brown Bear (Ursus Arctos L) Find from Ugglarp, Southernmost Sweden by : Ann-Marie Robertsson
Download or read book The Brown Bear (Ursus Arctos L) Find from Ugglarp, Southernmost Sweden written by Ann-Marie Robertsson and published by . This book was released on 1992 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Aquatic Sciences and Fisheries Abstracts by :
Download or read book Aquatic Sciences and Fisheries Abstracts written by and published by . This book was released on 1990-11 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book GFF written by and published by . This book was released on 1990 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Acta Universitatis Carolinae written by and published by . This book was released on 1999 with total page 712 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Research papers written by and published by . This book was released on 1986 with total page 624 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis GFF by : Geologiska föreningen (Sweden)
Download or read book GFF written by Geologiska föreningen (Sweden) and published by . This book was released on 1990 with total page 810 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Invertebrate Reproduction & Development by :
Download or read book Invertebrate Reproduction & Development written by and published by . This book was released on 2005 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Bibliography and Index of Geology by :
Download or read book Bibliography and Index of Geology written by and published by . This book was released on 1990 with total page 1516 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Memorie della Società italiana di scienze naturali e del Museo civico di storia naturale di Milano by :
Download or read book Memorie della Società italiana di scienze naturali e del Museo civico di storia naturale di Milano written by and published by . This book was released on 2004 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Zoological Record written by and published by . This book was released on with total page 906 pages. Available in PDF, EPUB and Kindle. Book excerpt:
