Nouveaux taxons et discussion de la systématique des genres correspondants d'Ovulidae (Mollusca, Caenogastropoda) de l'Eocène inférieur de Gan (France)
2002; Muséum national d'histoire naturelle; Volume: 24; Issue: 2 Linguagem: Inglês
ISSN
1638-9395
Autores Tópico(s)Paleontology and Stratigraphy of Fossils
ResumoCollections made during the last twenty years from silty clays of the upper-most Ypresian in La Tuilerie outcrop of Gan enhance our knowledge of the Cypraeidae and Ovulidae of the early Eocene. Within this corpus four new species of Ovulidae is introduced. The genera Prionovolva Iredale, 1930 and Sphaerocypraea Schilder, 1927 are herein redefined, the genera Habuprionovolva Azuma, 1970, Simnia Risso, 1826 and Xandarovula Cate, 1973 are discussed, and the genus Sandalia Cate, 1973 is ratified and confirmed in the early Eocene. With 21 species (17 genera and subgenera) the fossil assemblage from the Bearn Basin (Pyrenees-Atlantiques, southwest France) appears to be the most diversified record of Paleogene Cypraeoidea.
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