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Shell shape in living and fossil (Norwich Crag) Nucella lapillus (L.) in relation to habitat
Cambridge, P.G.; Kitching, J.A. (1982). Shell shape in living and fossil (Norwich Crag) Nucella lapillus (L.) in relation to habitat. J. Conch., Lond. 31: 31-38
In: Journal of Conchology. Conchological Society of Great Britain & Ireland: London. ISSN 0022-0019, more
Peer reviewed article  

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Keywords
    Shells (structural forms); Nucella lapillus (Linnaeus, 1758) [WoRMS]; ANE, British Isles, England, Norfolk [Marine Regions]; ANE, British Isles, Scotland, Firth of Forth [Marine Regions]; Marine

Authors  Top 
  • Cambridge, P.G.
  • Kitching, J.A.

Abstract
    Shell shape has been examined in collections of fossil Nucella lapillus (L.) from the Norwich Crag (early Pleistocene), and compared with living populations from sites in the Firth of Forth, from the coast of Norfolk and elsewhere. Our samples of living North Sea populations show much less variation in relation to wave-exposure than Atlantic shells, and other factors can be involved. The rather tall and narrow fossil shells are appropriate for a sheltered or moderately sheltered site, such as a bay or firth or restricted sea, but caution must be exercised in such comparisons. The mechanism determining shell form is discussed

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