Piovesan, E. K; Cabral, M. C.; Colin, J.-P.; Fauth, G.; Bergue, C. T. (2014). Ostracodes from the Upper Cretaceous deposits of the Potiguar Basin, northeastern Brazil: taxonomy, paleoecology and paleobiogeography. Part 1: Turonian. Carnets de Géologie. 14(12):211-252.

231353

10.4267/2042/54003 [view]

Piovesan, E. K; Cabral, M. C.; Colin, J.-P.; Fauth, G.; Bergue, C. T.

2014

14(12):211-252

Publication

http://paleopolis.rediris.es/cg/14/12/index.html

Available for editors   [request]

This paper describes thirteen new species and two new genera of marine and brackish water ostracodes from the Turonian deposits of Potiguar Basin, NE Brazil, among a total of 53 taxa. The new species include Cophinia grekoffi, Fossocytheridea tiberti, Haughtonileberis dinglei, Hemicytherura viviersae, Jandairella obesa (new genus and species), Loxocorniculum? narendrai, Ovocytheridea posteroprojecta, O. reymenti, Perissocytheridea caudata, P. mossoroensis, Potiguarella grosdidieri (new genus and species), P. coimbrai and Procytherura ballentae. The diversity and dominance indexes vary according to the paleoenvironment. Three assemblages were identified: a predominantly mixohaline fauna in the basal part of the section, followed by a diversified shallow marine fauna and, in the upper part, a marine and brackish water ostracode fauna. Most of the recorded species are endemic. Eight species are common to Northwest and North Africa, indicating a faunal link during the Turonian. The study of the Turonian faunas of the Potiguar Basin represents a significant improvement to understand the dynamic evolution of the Brazilian basins and the paleobiogeographical relationship with other regions.

Brazil

Paleontology, Fossils, Paleobiology

Ostracoda

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