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Late Aptian-Albian primitive Radiolitidae (bivalves, hippuritoidea) from Spain and SW France

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Masse, Jean Pierre y Fenerci Masse, M. y Vilas Minondo, Lorenzo y Arias Fernández, María del Carmen (2007) Late Aptian-Albian primitive Radiolitidae (bivalves, hippuritoidea) from Spain and SW France. Cretaceous research., 28 . pp. 697-718. ISSN 0195-6671

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URL Oficial: http://www.elsevier.com/locate/CretRes



Resumen

The late Aptian-Albian radiolitid taxa, Praeradiolites cantabricus (Douville´) and Praeradiolites ibizanus Astre, from SW France and Spain,
are transferred to Eoradiolites. Eoradiolites jumillensis nov. sp. is described from southern Spain, while the so-called ‘‘Sphaerulites cantabricus’’
sensu Toucas (1907) is moved to Praeradiolites and may be of Late Cretaceous age. The Eoradiolites cantabricus group of species is mainly
Clansayesian-early Albian in age and possesses an advanced evolutionary status, mainly regarding shell size and cellular structure. Praeradiolites
may have been derived from Eoradiolites jumillensis nov. sp. through paedomorphosis while Eoradiolites cantabricus may have been the
source for Sphaerulites. Our study shows that the names Sphaerulites and Praeradiolites cannot be applied to pre-Cenomanian Radiolitidae and
that Eoradiolites was the foremost genus in Late Aptian-Albian times in terms of species biodiversity. The Eoradiolites cantabricus group is
restricted to the northwestern Mediterranean Tethyan margin.


Tipo de documento:Artículo
Palabras clave:Rudist bivalves; Early Cretaceous; Taxonomy; Radiolitidae; Spain-SW France
Materias:Ciencias > Geología > Paleontología
Código ID:26710
Depositado:15 Sep 2014 08:37
Última Modificación:15 Sep 2014 08:37

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