Nuevos datos paleontológicos sobre el Cretácico Superior de Pálmaces de Jadraque y Veguillas (Guadalajara, España)
- Miguel Moratilla-García
- Fernando Barroso-Barcenilla
- Pedro Callapez
- Fernando García Joral
- Manuel Segura
ISSN: 0583-7510
Year of publication: 2015
Tome: 109
Issue: 1-4
Pages: 27-35
Type: Article
More publications in: Boletín de la Real Sociedad Española de Historia Natural. Sección geológica
Abstract
In order to update and expand the previous palaeontological studies about the Upper Cretaceous of the North of Guadalajara two stratigraphic sections have been studied near the villages of Pálmaces de Jadraque and Veguillas (Figs. 1, 2). Studied facies correspond to three different formations (Arenas, arcillas y calizas de Santa María de las Hoyas, Margas de Picofrentes and Dolomías de la Ciudad Encantada) that represent the transgression and the beginning of the regression of the upper Cenomanian-lower Turonian. The collected palaeontological material has been studied systematically and thirteen taxa have been identified: six bivalves, two gastropods, two cephalopods and two echinoids. Besides, two different biotic associations have been identified. The first one corresponds to a relative shallow environment with a fauna of epifaunal bivalves and gastropods that are located in the Santa María de las Hoyas Formation. The second represents a deeper environment with infaunal bivalves, gastropods, ammonoids and echinoids, and is located in the Picofrentes Formation.