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Publication Type
Journal Article
UWI Author(s)
Author, Analytic
Mitchell, Simon F.; Gunter, Gavin C.
Author Affiliation, Ana.
Department of Geography and Geology
Article Title
Biostratigraphy and taxonomy of the rudist chiapasella in the titanosarcolites limestones (maastrichtian) of Jamaica.
Medium Designator
n/a
Connective Phrase
n/a
Journal Title
Cretaceous research
Translated Title
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Reprint Status
Refereed
Date of Publication
2002
Volume ID
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Issue ID
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Page(s)
473-487
Language
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Connective Phrase
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Location/URL
http:; www.idealibrary.com
ISSN
n/a
Notes
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Abstract
The taxonomy of the radiolitid rudist Chiapasella Müllerried from the Titanosarcolites Limestones of Jamaica is revised based on the bed-by-bed collection of specimens from the Central and Maldon inliers. Two species are recognised: Chiapasella radiolitiformis Trechmann and C. trechmanni sp. nov. C. radiolitiformis is characterised by usually one or more costae (two or more infolds) in the interband, by the relatively narrow ventral band Vb, and by a costal ornamentation of strong growth lines and subsidiary vertical striations. C. trechmanni is characterised by the usual presence of no costae (one infold) in the interband, by the relatively wide Vb, and by a costal ornamentation dominated by vertical striations rather than horizontal growth lines. Two zones are recognised in the Titanosarcolites Limestones, a lower zone with C. radiolitiformis (B and Middle C Beds of the Central Inlier) and an upper zone with C. trechmanni (D and lower F Beds of the Central Inlier; Maldon Limestone, Popkin Shales and Vaughansfield Limestone of the Maldon Inlier).....
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