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STRATI 2013 pp 1099-1103 | Cite as

Upper Pliensbachian–Middle Toarcian Foraminiferal Assemblages in the Camino Section (Basque–Cantabrian Basin, Spain)

  • Concha HerreroEmail author
  • Roselis W. Salazar Ramírez
Conference paper
Part of the Springer Geology book series (SPRINGERGEOL)

Abstract

We recorded boreal foraminiferal faunas in the upper Pliensbachian–middle Toarcian in the Camino Section (western sector of the Basque–Cantabrian Basin, Spain). The results reveal step-wise extinction, replacement, and renewal events in the Pliensbachian–Toarcian transition. Extinction of typical long-ranging Lower Jurassic foraminiferal species is recorded mainly in the Tenuicostatum Zone of the Toarcian. Furthermore, the most significant renewal event occurs in the Serpentinum Zone, with the first appearance of the genus Citharina represented by various species. Typical lower Toarcian species are found in the Tenuicostatum Zone in both the Paltum and Semicelatum subzones.

Keywords

Foraminifera Biostratigraphic events Lower Jurassic Northern Spain 

Notes

Acknowledgments

This study was supported by the Research Group UCM No. 910431 and the MEC Project CGL2011-25894/BTE. We wish to acknowledge the comments made by the two anonymous reviewers and the revision of the English version by Cormac De Brun.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2014

Authors and Affiliations

  1. 1.Departamento de Paleontología, Facultad de Ciencias GeológicasUniversidad ComplutenseMadridSpain

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