Evolution Des Oiseaux D Apres Le Temoignage Des Fossiles

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L Volution Des Oiseaux D Apr S Le T Moignage Des Fossiles

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Author :
language : un
Publisher:
Release Date : 1987

L Volution Des Oiseaux D Apr S Le T Moignage Des Fossiles written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1987 with Birds categories.

Evolution Des Oiseaux D Apres Le Temoignage Des Fossiles

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Author : Centre national de la recherche scientifique (France)
language : fr
Publisher:
Release Date : 1987

Evolution Des Oiseaux D Apres Le Temoignage Des Fossiles written by Centre national de la recherche scientifique (France) and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1987 with categories.

L Evolution Des Oiseaux D Apr S Le T Moignage Des Fossiles

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Author : Cécile Mourer-Chauviré
language : en
Publisher: Lyon I Pu Claude Bernard
Release Date : 1987

L Evolution Des Oiseaux D Apr S Le T Moignage Des Fossiles written by Cécile Mourer-Chauviré and has been published by Lyon I Pu Claude Bernard this book supported file pdf, txt, epub, kindle and other format this book has been release on 1987 with Birds categories.

Les Leptobos Mammalia Artiodactyla Du Villafranchien D Europe Occidentale

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Author : Marie-Pascale Duvernois
language : fr
Publisher:
Release Date : 1990

Les Leptobos Mammalia Artiodactyla Du Villafranchien D Europe Occidentale written by Marie-Pascale Duvernois and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990 with Artiodactyla, Fossil categories.

LE GENRE VILLAFRANCHIEN LEPTOBOS EST REPRESENTE EN ASIE PAR L. FALCONERI (ESPECE-TYPE DU GENRE) ET EN EUROPE OCCIDENTALE PAR PLUSIEURS ESPECES QUI ONT ETE TRES SOUVENT CONFONDUES. UN BREF HISTORIQUE RETRACE LES DIVERSES SYNONYMIES. DANS LE PRESENT TRAVAIL, LEPTOBOS A VALEUR DE GENDRE ET EST CONSIDERE COMME APPARTENANT A LA SOUS-FAMILLE DES BOVINAE EN RAISON DE CES CARACTERES CRANIENS RELATIVEMENT EVOLUES. LES ESPECES EUROPEENNES SONTAU NOMBRE DE QUATRE, REPARTIES EN DEUX SOUS-GENRES REPRESENTANT DEUX LIGNEES: 1) LE SOUS-GENRE LEPTOBOS AVEC: LEPTOBOS ELATUS QUI COMPTE DEUX SOUS-ESPECES, L. ELATUS ELATUS ET L. ELATUS MERLAI, DONT L. STENOMETOPON EST UN SYNONYME RECENT. ET QUI CONTRIBUE A CARACTERISER LES BIOZONES MNQ 16 ET 17; LEPTOBOS FURTIVUS, QUI REMPLACE L. ELATUS MERLAI DES LE DEBUT DE LA ZONE 18; 2) LE SOUS-GENRE SMERTIOBOS AVEC: LEPTOBOS BRAVARDI QUI EST CONNU PENDANT UNE PARTIE DE LA ZONE 16; LEPTOBOS ETRUSCUS DONT L'EXTENSIN DANS LE TEMPS VA DE LA FIN DE LA ZONE 16 AU DEBUT DE LA ZONE 20. L'APPARITION DU GENRE LEPTOBOS COINCIDE AVEC LE DEBUT DU VILLAFRANCHIEN. LA REPARTITION SPATIOTEMPORELLE DES ESPECES EURPEENNES CONTRIBUE A CONFIRMER L'UNITE FAUNIQUE DE L'EUROPE OCCIDENTALE DURANT LE VILLAFRANCHIEN. L'ETUDE DES FAUNES ET DES FLORES ASSOCIEES REVELE, POUR LES DEUX SOUS-GENRES, UN ENVIRONNEMENT ASSEZ OUVERT OU LES ZONES A GRAMINEES ET FORESTIERES SE JUXTAPOSENT. LEPTOBOS EST COMPARE A DES GENRES PLIOCENES: PROLEPTOBOS, ALEPHIS ET PROAMPHIBOS, ET A DES GENRES PLEISTOCENES: EPILEPTOBOS, BIBOS, BOS ET BISON. PROAMPHIBOS APPARAIT COMME UN ANCETRE POSSIBLE DE LEPTOBOS L. L. FALCONERI SERAIT APPARENTE A BIBOS ET A EPILEPTOBOS; LE SOUS-GENRE LEPTOBOS POURRAIT ETRE LIE AVEC BISON (EOBISON); LE SOUS-GENRE SMERTIOBOS N'AURAIT PAS DONNE DE DESCENDANT

Documents Des Laboratoires De G Ologie Lyon

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Author :
language : en
Publisher:
Release Date : 1998

Documents Des Laboratoires De G Ologie Lyon written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with Geology categories.

Origins Of The Higher Groups Of Tetrapods

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Author : Hans-Peter Schultze
language : en
Publisher: Cornell University Press
Release Date : 1991

Origins Of The Higher Groups Of Tetrapods written by Hans-Peter Schultze and has been published by Cornell University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1991 with Nature categories.

This edited volume explores the various views on the origins of tetrapods--amphibians, reptiles, birds, and mammals--views that agree or differ depending in part on how certain fossil animals are classified and which methodology is used for classification. Eighteen chapters by an international group of paleontologists and neontologists here present current hypotheses, emphasizing the kinds of data needed to answer controversial questions, as well as the variety of solutions that emerge from diferent analyses of the same data set. The book is arranged in five sections, each of which contains an overview essay that either describes the development of various schools of thought regarding the origin of the tetrapod group in question or critically summarizes the arguments presented in the section. The first section addresses the origins of tetrapods as a group, focusing on lobe-finned fishes and early tetrapods. Next is a section dealing with amphbians, followed by one on reptiles. The fourth section concerns avian origins, and the final section treats the origins and early diversification of mammals. With an overall goal of stimulating critical evaluation by the reader rather than providing unequivocal answers, this volume will be of particaular interest to vertebrate paleontologists, evolutionary morphologists, and ichthyological, herpatological, avian, and mammalian systematists.

Ducks Geese And Swans Species Accounts Cairina To Mergus

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Author : Janet Kear
language : en
Publisher:
Release Date : 2005

Ducks Geese And Swans Species Accounts Cairina To Mergus written by Janet Kear and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with Nature categories.

Taking Wing

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Author : Pat Shipman
language : en
Publisher: Simon and Schuster
Release Date : 1999-01-15

Taking Wing written by Pat Shipman and has been published by Simon and Schuster this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999-01-15 with Science categories.

In 1861, just a few years after the publication of Charles Darwin's On the Origin of Species, a scientist named Hermann von Meyer made an amazing discovery. Hidden in the Bavarian region of Germany was a fossil skeleton so exquisitely preserved that its wings and feathers were as obvious as its reptilian jaws and tail. This transitional creature offered tangible proof of Darwin's theory of evolution. Hailed as the First Bird, Archaeopteryx has remained the subject of heated debates for the last 140 years. Are birds actually living dinosaurs? Where does the fossil record really lead? Did flight originate from the "ground up" or "trees down"? Pat Shipman traces the age-old human desire to soar above the earth and to understand what has come before us. Taking Wing is science as adventure story, told with all the drama by which scientific understanding unfolds.

Holocene Extinctions

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Author : Sam Turvey
language : en
Publisher: Oxford University Press
Release Date : 2009-05-28

Holocene Extinctions written by Sam Turvey and has been published by Oxford University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009-05-28 with Nature categories.

This makes a detailed consideration of these extinctions a useful system for investigating the impacts of human activity over time.

An Evolutionary Study Of Some Archaeologically Significant Avian Taxa In The Quaternary Of The Western Palaearctic

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Author : John R. Stewart
language : en
Publisher: British Archaeological Reports Oxford Limited
Release Date : 2007

An Evolutionary Study Of Some Archaeologically Significant Avian Taxa In The Quaternary Of The Western Palaearctic written by John R. Stewart and has been published by British Archaeological Reports Oxford Limited this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with Nature categories.

This work sets out to examine four taxa of birds from the Quaternary of Europe that exhibit interesting morphological anomalies - cranes (Grus), grouse/ptarmigans (Lagopus), ravens (Corvus corax) and starlings (Sturnus) - to address whether these were the result of inter- or intraspecific processes. Modern skeletal material of these taxa from a wide geographical area was examined so as to make a more realistic assessment of the fossils than had previously been achieved. Similarly, fossils were studied from a wider geographical and temporal range than before. The study of the four chosen taxa was carried out with an acknowledgement of a variety of theoretical issues in biology, which affect the interpretation of such fossils.