Asociaciones de foraminíferos del Toarciense superior y Aaleniense en la sección de Moyuela (Zaragoza, España)
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Universidad Complutense de Madrid
info
ISSN: 0556-655X
Year of publication: 2000
Volume: 32
Issue: 3
Pages: 301-317
Type: Article
More publications in: Revista española de micropaleontología
Abstract
Lower/Middle Jurassic transition foraminiferal assemblages from the Central Sector of the Aragonese Branch of the Iberian Range are described and figured for the first time. 9674 specimens have been recovered and 57 species have been identified in the 25 samples processed. Although the suborders Textulariina, Miliolina, Spirillinina, Rotaliina and Robertinina are present, Lagenina is the dominant taxonomic group either in number of species and specimens. A marked homogeneity characterizes the assemblage succession. From the Upper Toarcian to the Bajocian, Lower Jurassic species are slowly and progressively replaced by Middle Jurassic ones.