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Early Cretaceous Foraminifera, Algal Nodules and Calpionellids from the Lapoş Valley, Bicaz Gorges (Eastern Carpathians, Romania)

Ovidiu Dragastan - University of Bucharest, Faculty of Geology and Geophysics, Department of Geology and Paleontology, 1 N. Bălcescu Blv., 010041 Bucharest, Romania

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Abstract:

The Early Cretaceous (Neocomian) carbonate deposits of the Transylvanian carbonate Platform (Patrulius et al., 1976) are well-developed, with a nearly complete geological section along the Lapoş Valley, Bicaz Gorges (Eastern Carpathians), forming the Lapoş Formation. From this section, several foraminifera (Anchispirocyclina lusitanica, species of the genus Andersenolina, Everticyclammina virguliana, E. kelleri, E. greigi), along with new taxa: Streptocyclammina orientalis n. sp. (Fam. Spirocyclinidae), Buccicrenata maynci n. sp., Pseudocyclammina transylvanica n. sp. (Fam. Cyclamminidae) and Mohlerina n. sp. are described. The Berriasian Everticyclammina irregularis( Dragastan 1989 non 1975) is here transferred to the genus Buccicrenata and, thus, becomes B. irregularis (Dragastan, 1989) Dragastan nov. comb. Algae and algal nodules are also described from these foraminifera-bearing assemblages; their age is calibrated through correlation with the calpionellid zonation.
Copyright © 2011 Published by Ed. Univ. „Al. I. Cuza” Iași. All rights reserved.



Keywords:

foraminifera, new taxa, algae, algal nodules, calpionellids, Early Cretaceous



  
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