Journal article

1ST PLANKTONIC-FORAMINIFERA FROM THE EARLY CRETACEOUS (ALBIAN) OF THE UPPER MAGDALENA VALLEY, COLOMBIA


Authors list: BLAU, J; VERGARA, L; STOCK, HW

Publication year: 1992

Pages: 191-206

Journal: Journal of South American Earth Sciences

Volume number: 6

Issue number: 3

ISSN: 0895-9811

DOI Link: https://doi.org/10.1016/0895-9811(92)90008-M

Publisher: Elsevier


Abstract: 
Albian planktonic foraminifera have been found in the Caballos and ''Villeta'' formations at two localities in the Upper Magdalena Valley. This is the first documented record of Early Cretaceous planktonic foraminifera in Colombia. Hedbergellids and heterohelicids predominate; keeled forms are absent. The sedimentologic features and the associated microfauna indicate the onset of restricted environments from the middle Albian on.



Citation Styles

Harvard Citation style: BLAU, J., VERGARA, L. and STOCK, H. (1992) 1ST PLANKTONIC-FORAMINIFERA FROM THE EARLY CRETACEOUS (ALBIAN) OF THE UPPER MAGDALENA VALLEY, COLOMBIA, Journal of South American Earth Sciences, 6(3), pp. 191-206. https://doi.org/10.1016/0895-9811(92)90008-M

APA Citation style: BLAU, J., VERGARA, L., & STOCK, H. (1992). 1ST PLANKTONIC-FORAMINIFERA FROM THE EARLY CRETACEOUS (ALBIAN) OF THE UPPER MAGDALENA VALLEY, COLOMBIA. Journal of South American Earth Sciences. 6(3), 191-206. https://doi.org/10.1016/0895-9811(92)90008-M


Last updated on 2025-02-04 at 06:16