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A Stratigraphic Index of Dinoflagellate Cysts PDF

295 Pages·1992·11.09 MB·English
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A Stratigraphic Index of Dinoflagellate Cysts British Micropalaeontological Society Publication Series This series, published on behalf of the British Micropalaeontological Society by Chapman & Hall, aims to provide a synthesis of the current state of knowledge of all microfossil groups. The stratigraphic indexes detail the distribution of these groups in British sequences. Supported by notes on the systematics and identification criteria of the various taxa, these volumes are a unique compilation of data crucial to the work of those geologists concerned with stratigraphic correlation. The Series also includes the proceedings of selected conferences and edited volumes on specialist themes. Books in the series provide essential reading for all micropalaeontologists and palaeontologists in academia and in industry. A Stratigraphic Index of Dinoflagellate Cysts Edited by A.J. Powell Millennia Ltd, Alton, Hampshire SPRINGER-SCIENCE+BUSINESS MEDIA, B.V. A catalogue record for this book is available from the British Library Library of Congress Cataloging-in-Publieation data A Stratigraphic index of dinoftagellate eysts I edited by A.J. Powell. - Ist ed. p. em. - (British Micropalaeontologieal Society series) IncJudes bibliographical referenees and indexes. ISBN 978-94-010-5052-4 ISBN 978-94-011-2386-0 (eBook) DOI 10.1007/978-94-011-2386-0 1. Dinoftagellates, Fossil-Great Britain. 2. Paleobotany- Mesozoic. 3. Paleobotany-Cenozoic. 4. Paleontology, Stratigraphie. 1. Powell, A.J. (Alister James), 1956- II. Series. QE955.S784 1992 561' .93-de20 91-29122 CIP First edition 1992 © 1992 Springer Science+Business Media Dordrecht Originally published by Kluwer Academic Publishers in 1992 Softcover reprint ofthe hardcover Ist edition 1992 Reprinted with corrections 1999 by Kluwer Academic Publishers Typeset in 10112pt Times by Graphicraft Typesetters Ltd., Hong Kong ISBN 978-94-010-5052-4 Printed on acid-free paper Contents Contributors vii Acknowledgements ix Preface xi 1. Dinoflagellate cysts of the Triassic System 1 A. James Powell 2. Dinoflagellate cysts of the Jurassic System 7 James B, Riding and Joanna E. Thomas 3. Dinoflagellate cysts of the Cretaceous System 99 Lucy I. Costa and Roger J. Davey 4. Dinoflagellate cysts of the Tertiary System 155 A. James Powell 5. Dinoflagellate cysts of the Quaternary System 253 Rex Harland Appendix A. Lithological legend 274 Appendix B. Species list 275 Index 281 Contributors Dr Lucy I. Costa, Dr A. james Powell, The Robertson Group pIc, Millennia Ltd, Ty'n-y-Coed, Unit 3, Weyside Park, Llanrhos, Newman Lane, LLANDUDNO, UK. ALTON, UK. Dr Roger j. Davey, Dr james B. Riding, The Robertson Group pIc, British Geological Survey, Ty'n-y-Coed, Nicker Hill, Llanrhos, Keyworth, LLANDUDNO, UK. NOITINGHAM, UK. Dr Rex Harland, Dr joanna E. Thomas, British Geological Survey, British Geological Survey, Nicker Hill, Nicker Hill, Keyworth, Keyworth, NOITINGHAM, UK. NOITINGHAM, UK. Acknowledgements The assistance of the British Geological L.1.c. and R.J.D. gratefully acknowledge Survey, the British Micropalaeontological the Robertson Group pIc for their support in Society, the British Petroleum Company pIc, the production of, and permission to publish, Chapman and Hall Ltd, Ellis Horwood Ltd, the Cretaceous chapter. Millennia Ltd, and the Robertson Group pIc, J.B.R. and J.E.T. acknowledge the special is gratefully acknowledged. Permission to use assistance of Beris Cox, Ian Penn and Geoff the Mesozoic lithostratigraphical summaries, Warrington. R.H. 's acknowledgements appear redrawn by BP, was kindly given by George at the end of Chapter 5. Allen & Unwin. Special thanks are due to Simon Tull, who A.J.P. is grateful to Rex Harland, Claus commissioned the book, and the staff at Heilmann-Clausen and Geoff Eaton for pro- Chapman & Hall who produced it. viding negatives and prints, and the latter for Rex Harland, Jim Riding and Joanna reading through the Tertiary Chapter. Ian Thomas all publish with the permission of the Harding is thanked for providing the SEM Director of the British Geological Survey, photograph of Cribroperidinium sepimentum NERC. which appears on the front cover. Ron Woollam kindly read the Triassic Chapter, for which Geoff Warrington provided the ranges. Preface The aim of this volume in the British Micro- was letting myself in for. During early 1987 palaeontological Society (BMS) Occasional my initial task was to invite various experts Publication Series is to review the present to contribute to individual, stratigraphically state of knowledge concerning the stratigraphic arranged chapters. Having finalized the list distribution of dinoflagellate cysts in British of contributors, we were able to establish, not sediments. only the objectives of the volume, but also a I stress that this volume is one in the BMS preferred format. Series and, as such, does not purport to repre- After initial negotiations with the then pub- sent stratigraphic coverage of areas outside lisher of the BMS Series, Ellis Horwood the territories of the British Isles. However, Limited, a contract was signed on 18th Janu- in certain stratigraphic sections, applicability ary 1988 with a completion date of 31st July to northwest Europe is appropriate. No global 1989. However, it soon became apparent that scale is implied. this was a totally unrealistic goal and, as a Since the BMS introduced its Occasional result, it was re-negotiated to 1st December Publication Series in 1978, it has been obvious 1989. Since then, progress has been somewhat that a large gap has existed in its range. There erratic; various contributors have either been has been no single volume devoted to paly- abroad on operational assignments, or have nology; stratigraphic indices of acritarchs, had little time to devote to such erudite pur- dinoflagellate cysts and miospores, in particu- suits of low priority status. Personal circum- lar, have long been overdue. The principal stances beyond our control necessitated a final reason for the lack of a dinoflagellate cyst deadline of January 1991. So the volume took volume is that the intensive study of these us almost exactly four years to complete from microfossils is relatively new to geological inception. science (relative to the levels of maturity We faced a number of difficulties from the reached in foraminiferal and ostracod studies, outset. Should we restrict ourselves to sedi- for example). ments onshore the British Isles? Should we On becoming Secretary of the BMS Micro- consider material from offshore boreholes? plankton Group in December 1986, Jim Should we fill stratigraphic gaps, or intervals Riding, the retiring Secretary, suggested that I of poor recovery, with suitable substitute sec- might be prepared to oversee the production tions from northwest Europe, or even further of a stratigraphic index of dinoflagellate cysts. afield? Should emphasis be placed on first or I thought it an excellent idea, but having little last appearance events? editorial experience, I had no idea of what I We decided to aim for maximum strati- XII Preface graphic coverage, with emphasis on material We selected the 1987 Exxon timescale, pri- from the public domain. For selected inter- marily because at the outset of our project it vals, notably the Upper Cretaceous, Palaeo- was the most comprehensive one available cene, Oligocene and Neogene successions, for the Mesozoic and Cenozoic interval. This we have had to refer to offshore areas and to timescale has been calibrated with a sequence sections in northwest Europe. For greatest chronostratigraphy and eustatic curve which biostratigraphic reliability, and because we may be of use to some readers. Because of the have primarily reviewed published informa- peculiarity of the Quaternary System, the tion, we have placed emphasis on first appear- British stage nomenclature has been used. ance events. Lithostratigraphic summaries for the Jurassic, We felt that a maximum degree of con- Cretaceous and Tertiary British successions sistency in style would be desirable for all have been compiled in diagrammatic form. chapters so that the volume would stand alone Since we formulated our idealized vision of as a useful reference text, and not appear as a this volume, we have had to make a number series of disparate papers. We hoped to illus- of compromises. In particular, a comprehen- trate as many taxa as possible and to produce sive biozonation has not been possible, and a biozonation for the whole of the Mesozoic- the number of species illustrated has fallen Cenozoic succession of the British Isles. short of our original intentions. Nevertheless, We agreed to adopt a standard taxonomy it is hoped that this volume will be the first in and timescale. As far as taxonomy is con- a series of editions; it should be improved and cerned, we have followed the 1989 Index of updated through time as the study of British Lentin and Williams as our guide wherever dinoflagellate cysts progresses. It will depend possible, with a few exceptions. However, upon the vigour and enthusiasm of future when this volume appears on the shelves, it is dinoflagellate cyst workers in Britain to ensure inevitable that some aspects of the taxonomy that this becomes a worthwhile tradition. will be out of date. For ease of reading, the full citation for each taxon mentioned in the text is given in Appendix B. A. James Powell Alton, Hants · .. lucidity and the calm rhythms of logic- al thought. These he knew, depended upon a continuing belief in one's grasp of every issue relevant to one's subject . .. Paul Scott, 'A Division of the Spoils'.

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