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Reevaluation of the systematic position of Scenella

Lethaia, 1984-10, Vol.17 (4), p.331-340 [Peer Reviewed Journal]

Copyright © 1984 Lethaia Foundation ;ISSN: 0024-1164 ;EISSN: 1502-3931 ;DOI: 10.1111/j.1502-3931.1984.tb02024.x

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  • Title:
    Reevaluation of the systematic position of Scenella
  • Author: Yochelson, Ellis L. ; Cid, Dolores Gil
  • Subjects: Cambrian ; Chondrophorina ; Coelenterata ; Mollusca ; Monoplacophora ; phylogeny ; Scenella
  • Is Part Of: Lethaia, 1984-10, Vol.17 (4), p.331-340
  • Description: Specimens originally illustrated from Lower Cambrian rocks of the Sierra Morena in Badajoz and Sevilla Provinces, southwestern Spain are supplemented by new material from another locality and are described as Scenella morenensis n. sp. Although Scenella was originally considered to be a patelliform gastropod, for three decades now the genus has been classified as a monoplacophoran. The type species of Scenella, S. reticulata Billings, does not show any paired muscles scars, nor does this new species; such scars are indicative of the Monoplacophora. This new species of Scenella does exhibit features which suggest assignment to the chondrophorine coelenterates. If so, Scenella cannot represent the ancestral form of mollusk.
  • Publisher: Oxford, UK: Scandinavian University Press
  • Language: English;Norwegian
  • Identifier: ISSN: 0024-1164
    EISSN: 1502-3931
    DOI: 10.1111/j.1502-3931.1984.tb02024.x
  • Source: Alma/SFX Local Collection
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