Albian eoradiolites (Bivalvia: Radiolitidae) from Jabal Naïmia, Gafsa Region, Tunisia, with revisional studies on the Albian forms of the genus

Jose Maria Pons, Enric Vicens, Fettouma Chikhi-Aouimeur, Hassen Abdallah

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8 Citations (Scopus)

Abstract

The external morphology and its variability, myocardinal apparatus, and shell structure of both valves of the radiolitid rudist Eoradiolites plicatus (Conrad) are described, based on the examination of about one hundred well-preserved, fairly complete specimens that are free of sediment matrix, found in a single bed of an ammonite-bearing Albian succession ('Knemiceras beds', Zebbag Formation) in central Tunisia. This study provides the most nearly complete knowledge of any Eoradiolites species to date. With this background, all previous records of E. plicatus, as well as the taxonomic status of the other Albian species of the genus, are revised considering both original material, when available, and published papers. As a result, the systematics of Eoradiolites is simplified. © 2010 The Paleontological Society.
Original languageEnglish
Pages (from-to)321-331
JournalJournal of Paleontology
Volume84
DOIs
Publication statusPublished - 1 Mar 2010

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