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Turonian and Coniacian Ostracods from the Gafsa Basin (central-southern Atlas of Tunisia) and the Gulf of Gabes (eastern coast of Tunisia): Biostratigraphic, paleoevironmental and paleobiogeographic implications
- Source :
- Revue de Micropaléontologie. 60:525-547
- Publication Year :
- 2017
- Publisher :
- Elsevier BV, 2017.
-
Abstract
- Three hundred thirty-nine samples were collected from the Turonian-Coniacian succession that crops out in the Gafsa Basin and drilled in the Gulf of Gabes; these samples come from four outcrops and four wells and they were examined for their ostracod content. Sixty-two species belonging to twenty-nine genera were identified. They are subdivided into two major groups: smooth - species dominated assemblages and ornamented - species dominated assemblages. In the present work, five research goals are pursued: 1) to document the ostracod biodiversity encountered in the studied outcrops and wells, 2) to establish their biostratigraphic distribution, 3) to suggest a zonation mainly based on ostracods and correlated directly with the equivalent planktic foraminiferal zones, 4) to attempt a paleoenvironmental reconstruction based on the application of paleoecological characteristics of the identified ostracod assemblages. Finally, paleobiogeographical relationships were carried out between the Tunisian ostracods and those recorded in different regions of the Tethyan realm.
- Subjects :
- 010506 paleontology
biology
Outcrop
Biodiversity
Ostracods
Paleontology
Turonian
Ecological succession
Structural basin
Paleobiogeography
010502 geochemistry & geophysics
biology.organism_classification
01 natural sciences
Ostracod
Paleoecology
aleoecology
Coniacian
Geology
0105 earth and related environmental sciences
Subjects
Details
- ISSN :
- 00351598
- Volume :
- 60
- Database :
- OpenAIRE
- Journal :
- Revue de Micropaléontologie
- Accession number :
- edsair.doi.dedup.....f34f74c69583ed3af3283180627edc7f