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Reevaluation of the systematic position of Scenella.

Lethaia

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Abstract

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 speices; 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. -Authors

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Reevaluation of the systematic position of Scenella.
Series title:
Lethaia
Volume
17
Issue:
4
Year Published:
1984
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Lethaia
First page:
331
Last page:
340
Number of Pages:
10