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Global Cambrian trilobite palaeobiogeography assessed using parsimony analysis of endemicity

By
J. Javier Álvaro
J. Javier Álvaro
Centro de Astrobiología (INTA/CSIC), Ctra de Torrejón a Ajalvir, km 4, 28850 Torrejón de Ardoz, Spain
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Per Ahlberg
Per Ahlberg
Department of Earth and Ecosystem Sciences, GeoBiosphere Science Centre, Lund University, Sölvegatan 12, 223 62 Lund, SwedenSchool of Earth Sciences, The Ohio State University, Columbus, OH 43210, USA
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Loren E. Babcock
Loren E. Babcock
School of Earth Sciences, The Ohio State University, Columbus, OH 43210, USA
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Osvaldo L. Bordonaro
Osvaldo L. Bordonaro
IANIGLA-CONICET, c.c. 131, 5500 Mendoza, Argentina
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Duck K. Choi
Duck K. Choi
School of Earth and Environmental Sciences, Seoul National University, Seoul 151-747, Korea
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Roger A. Cooper
Roger A. Cooper
GNS Science - Te Pu Ao, 1 Fairway Drive, Avalon, PO Box 30368, Lower Hutt, New Zealand
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Gappar KH. Ergaliev
Gappar KH. Ergaliev
Institute of Geological Sciences, National Academy of Sciences, ul. Kabanbai Batyr 69a, 480100 Almaty, Republic of Kazakhstan
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I. Wesley Gapp
I. Wesley Gapp
Department of Geology and Natural History Museum/Biodiversity Research Center, University of Kansas, 1475 Jayhawk Blvd., 120 Lindley Hall, Lawrence, KS 66045, USA
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Mansoureh Ghobadi Pour
Mansoureh Ghobadi Pour
Department of Geology, Faculty of Sciences, Golestan University, Gorgan 49138-15739, Iran
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Nigel C. Hughes
Nigel C. Hughes
Department of Earth Sciences, University of California, Riverside, CA 92521, USA
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James B. Jago
James B. Jago
School of Natural and Built Environments, University of South Australia, Mawson Lakes, SA 5095, Australia
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Igor Korovnikov
Igor Korovnikov
Institute of Petroleum Geology and Geophysics, Siberian Branch of Russian Academy of Sciences, Academician Koptyug Avenue, 3, 630090 Novosibirsk, Russia
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John R. Laurie
John R. Laurie
Petroleum and Marine Division, Geoscience Australia, GPO Box 378, Canberra ACT 2601, Australia
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Bruce S. Lieberman
Bruce S. Lieberman
Department of Geology and Natural History Museum/Biodiversity Research Center, University of Kansas, 1475 Jayhawk Blvd., 120 Lindley Hall, Lawrence, KS 66045, USA
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John R. Paterson
John R. Paterson
Division of Earth Sciences, School of Environmental & Rural Science, University of New England, Armidale, NSW 2351, Australia
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Tatyana V. Pegel
Tatyana V. Pegel
Siberian Research Institute of Geology, Geophysics and Mineral Resources (SNIIGGiMS), Krasnyj Ave 67, 630091 Novosibirsk, Russia
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Leonid E. Popov
Leonid E. Popov
Department of Geology, National Museum of Wales, Cardiff, Cathays Park, Cardiff CF10 3NP, UK
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Adrian W. A. Rushton
Adrian W. A. Rushton
Palaeontological Department, The Natural History Museum, London SW7 5BD, UK
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Sergei S. Sukhov
Sergei S. Sukhov
Siberian Research Institute of Geology, Geophysics and Mineral Resources (SNIIGGiMS), Krasnyj Ave 67, 630091 Novosibirsk, Russia
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M. Franco Tortello
M. Franco Tortello
División Paleontología Invertebrados, Museo de Ciencias Naturales, Paseo del Bosque s/n, 1900 La Plata, Argentina
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Zhiyi Zhou
Zhiyi Zhou
Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, 39 East Beijing Road, Nanjing 21008, China
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Anna Żylińska
Anna Żylińska
Faculty of Geology, University of Warsaw, Żwirki i Wigury Str. 93, 02-089 Warszawa, Poland
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Published:
January 01, 2013

Abstract

Palaeobiogeographical data on Cambrian trilobites obtained during the twentieth century are combined in this paper to evaluate palaeoceanographic links through c. 30 myr, once these arthropods biomineralized. Worldwide major tectonostratigraphic units are characterized at series intervals of Cambrian time and datasets of trilobite genera (629 for Cambrian Series 2, 965 for Cambrian Series 3, and 866 for the Furongian Series) are analysed using parsimony analysis of endemicity. Special attention is given to the biogeographical observations made in microcontinents and exotic terranes. The same is done for platform-basinal transects of well-known continental margins. The parsimony analysis of endemicity analysis resulted in distinct palaeogeographical area groupings among the tectonostratigraphic units. With these groupings, several palaeobiogeographical units are distinguished, which do not necessarily fit the previously proposed biogeographical realms and provinces. Their development and spatial distributions are broadly controlled by Cambrian palaeoclimates, palaeogeographical conditions (e.g. carbonate productivity and anoxic conditions) and ocean current circulation.

Supplementary material:

Global dataset of Cambrian Epoch 2 (A), Cambrian Epoch 3 (B) and the Furongian Epoch (C) trilobite genera are provided at: http://www.geolsoc.org.uk/SUP18669

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Contents

Geological Society, London, Memoirs

Early Palaeozoic Biogeography and Palaeogeography

D. A. T. Harper
D. A. T. Harper
Durham University, UK
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T. Servais
T. Servais
CNRS–Université de Lille 1, France
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Geological Society of London
Volume
38
ISBN electronic:
9781862396425
Publication date:
January 01, 2013

GeoRef

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