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Cochliodonts and chimaeroids: Arthur Smith Woodward and the holocephalians

Christopher J. Duffin
Geological Society, London, Special Publications, 430, 137-154, 14 October 2015, https://doi.org/10.1144/SP430.9
Christopher J. Duffin
1Department of Earth Science, Scientific Associate, The Natural History Museum, Cromwell Road, London SW7 5BD, UK
2146 Church Hill Road, Sutton, Surrey SM3 8NF, UK (e-mail: )
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  • For correspondence: cduffin@blueyonder.co.uk
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Abstract

Fossil chondrichthyan teeth played an important part in the establishment of a scientific understanding of ‘formed stones’. Following a slowly emerging taxonomy, Louis Agassiz presented the first comprehensive guide to Palaeozoic chondrichthyans in the 1830s. The next contribution of any substance was Arthur Smith Woodward's Catalogue of Fossil Fishes in the British Museum (Natural History) with a historical, descriptive and systematic review of the chondrichthyans, a group on which he already had an impressively large publication record. Initially stimulated by his observations on an articulated petalodont dentition (Climaxodus), Smith Woodward erected the Bradyodonti in 1921. Defined on the possession of dentitions with very slow growth rates, only seven or eight successional teeth produced throughout the lifetime of the fish, and retention rather than shedding of earlier teeth, primarily by fusion to later ones, the bradyodonts embraced petalodonts, psammodonts, copodonts and cochliodonts. The establishment and subsequent demise of the bradyodonts is briefly reviewed here.

  • © 2016 The Author(s). Published by The Geological Society of London. All rights reserved
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Geological Society, London, Special Publications: 430 (1)
Geological Society, London, Special Publications
Volume 430
2016
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Cochliodonts and chimaeroids: Arthur Smith Woodward and the holocephalians

Christopher J. Duffin
Geological Society, London, Special Publications, 430, 137-154, 14 October 2015, https://doi.org/10.1144/SP430.9
Christopher J. Duffin
1Department of Earth Science, Scientific Associate, The Natural History Museum, Cromwell Road, London SW7 5BD, UK
2146 Church Hill Road, Sutton, Surrey SM3 8NF, UK (e-mail: )
  • Find this author on Google Scholar
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  • For correspondence: cduffin@blueyonder.co.uk

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Cochliodonts and chimaeroids: Arthur Smith Woodward and the holocephalians

Christopher J. Duffin
Geological Society, London, Special Publications, 430, 137-154, 14 October 2015, https://doi.org/10.1144/SP430.9
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    • Abstract
    • Pre-scientific notions
    • From folklore to science
    • Early taxonomies
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