Les ostracodes paleogenes du Togo: Taxonomie, biostratigraphie, apports dans l'organisation et l'évolution du bassin

Carbonnel, Gilles; Kodjo, Mawugno Koffi

doi:10.1016/s0016-6995(89)80097-x

Cited by 33 publications

(16 citation statements)

References 6 publications

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“…Reyment and Aranki (1991) revise the three most important species of Soudanella: S. laciniosa Apostolescu, S. triangulata Apostolescu, and S. ioruba Apostolescu. Stratigraphic and geographic distribution: Paleocene of Nigeria (Reyment, 1963;Foster et al, 1983;Okosun, 1987); Paleocene-Lower Eocene, Senegal (Apostolescu, 1961;Diop et al, 1982) and Togo (Damotte, 1982;Carbonnel and Johnson, 1989); Upper Paleocene of Benin (Carbonnel and Oyede, 1991) and Mali (Colin et al, 1998); Danian of the Sergipe-Alagoas Basin (Neufville, 1973(Neufville, , 1979; and lower Danian of the Pernambuco-Paraíba Basin, Brazil.…”

Section: Previous Studies Of Ostracodes From the Poty Quarrymentioning

confidence: 99%

“…Stratigraphic and geographic distribution: MaastrichtianDanian of Tunisia (Donze et al, 1982), Paleocene of Libya (Salahi, 1966), Upper Paleocene of Mali (Carbonnel and Monciardini, 1995;Colin et al, 1998), Paleocene of Togo (Carbonnel and Johnson, 1989), Upper Paleocene of Senegal (Diop et al, 1982;Carbonnel, 1986Carbonnel, , 1990, middle Paleocenelowest Eocene of Egypt (Bassiouni and Luger, 1990), and lower Danian of the Pernambuco-Paraíba Basin of Brazil.…”

Section: Family Loxoconchidae Sars 1925 Genus Loxoconcha Sars 1866mentioning

confidence: 99%

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Cretaceous–Tertiary boundary ostracodes from the Poty quarry, Pernambuco, northeastern Brazil

Fauth¹,

Colin²,

Koutsoukos

et al. 2005

Journal of South American Earth Sciences

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Section: Previous Studies Of Ostracodes From the Poty Quarrymentioning

confidence: 99%

Section: Family Loxoconchidae Sars 1925 Genus Loxoconcha Sars 1866mentioning

confidence: 99%

Cretaceous–Tertiary boundary ostracodes from the Poty quarry, Pernambuco, northeastern Brazil

Fauth¹,

Colin²,

Koutsoukos

et al. 2005

Journal of South American Earth Sciences

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“…Dimensions: L.: 0.70 mm, H.: 0.37 mm. Occurrence: Paleocene-lower Eocene of Togo (Apostolescu, 1961;Carbonnel and Johnson, 1989), upper Paleocene of Senegal (Carbonnel, 1986) and upper Paleocene-lower Eocene of Libya (Barsotti, 1963;Salahi, 1966) and Egypt (Mohamed, 1982;Bassiouni and Luger, 1990;Bassiouni and Morsi, 2000;Morsi and Speijer, 2003). The present specimen was found in the lower Eocene (Ypresian) at Sidi Nasseur.…”

Section: Genus Leguminocythereis Howe 1936mentioning

confidence: 58%

“…Occurrence: The species was previously recorded in the Paleocene-middle Eocene of Togo (Apostolescu, 1961;Carbonnel and Johnson, 1989) and the offshore of Mauritania (Carbonnel, 1988). In the present study, it occurs in the lower Eocene at Wadi Mezaz and Sidi Nasseur.…”

Section: Reticulina Proterosmentioning

confidence: 99%

“…Occurrence: The species was previously described from the lower Paleocene of Benin (Dahomey) (Apostolescu, 1961), Paleocene of Togo (Carbonnel and Johnson, 1989) and Nigeria (Sokoto) (Reyment, 1963), upper Paleocene of Libya (Keen et al, 1994), upper Paleocene/Ypresian of Niger, Paleocene-Ypresian of Mali (Carbonnel and Monciardini, 1995) and lower Eocene of Senegal (Ducasse et al, 1978). Here, it is also found in the lower Eocene (Ypresian) at Sidi Nasseur and Wadi Mezaz.…”

Section: Reticulina Proterosmentioning

confidence: 99%

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Shallow marine ostracode turnover in response to environmental change during the Paleocene–Eocene thermal maximum in northwest Tunisia

Morsi

Speijer

Stassen

et al. 2011

Journal of African Earth Sciences

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a b s t r a c tTwo outcrop sections spanning the Paleocene-early Eocene boundary in the Sidi Nasseur-Wadi Mezaz area in northwest Tunisia provided rich ostracode assemblages, yielding 26 species of which three are newly described: Reymenticosta bassiounii, Reymenticosta nasseurensis and Buntonia? tunisiensis. The recorded ostracode fauna and associated foraminifera reflect deposition in a coastal to inner neritic environment. Many of the recorded taxa have a wide geographic distribution throughout the Middle East and North Africa. A correspondence is also observed with West African faunas, especially in the early Eocene fauna. These taxa seem to have originated in West Africa during the Paleocene and migrated northwards during the late Paleocene to early Eocene. Sea-level change and decrease in oxygenation associated with the Paleocene-Eocene thermal maximum (PETM) caused the local disappearance of the South Tethyan Paleocene fauna represented by Paracosta kefensis (morphotype-A), Paracosta aff. paleomokattamensis, Paracypris sp. B Esker, Loxoconcha saharaensis, Buntonia sp. 3 Donze et al., Protobuntonia nakkadii, and probably Reymenticosta bassiounii and R. nasseurensis. Simultaneously, a new but poorly diverse AfroTethyan fauna, mainly represented by Alocopocythere attitogonensis and Buntonia? tunisiensis, settled in the studied part of the basin. After the PETM, diversity increased again as various taxa (e.g. Bairdia aegyptiaca, Reticulina lamellata and Aegyptiana duwiensis) (re)appeared. Although detailed records across the P/ E boundary are still sparse, it appears that the PETM exerted significant influence on the paleobiogeography and composition of Tethyan ostracode faunas.

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Biostratigraphy, palaeoecology, and palaeobiogeography of the Middle–Late Eocene ostracods, north‐west Fayoum area, Egypt

et al. 2022

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The present study focuses principally on the late Middle Eocene–early Late Eocene ostracods from two successions (Garet Umm Rigl section and Qasr El Sagha sections), in the northwestern portion of Fayoum area, Egypt. Stratigraphically, the studied successions are classified into three formations (from base to top), the Gehannam, Birket Qarun, and Qasr El Sagha (Temple Member). The recorded ostracod assemblage contains 33 species belonging to 20 genera and 9 families. According to their stratigraphic ranges, three local biozones are recognized, Asymmetricythere yousefi–Loxoconcha pseudopunctatella, Reticulina heluanensis–Leguminocythereis sadeki, and Trachyleberis nodosus nodosulcatus–Ruggeria (Keijella) glabella. The comparison of the proposed biozones with their equivalents inside Egypt denotes a Middle–Late Eocene age for the studied sections. Based on the character of investigated ostracods, three ecozones are distinguished. An inner–outer neritic environment is suggested for the first ecozone, inner‐middle neritic conditions for the second, while shallow water conditions are proposed for the third ecozone. In addition, this paper represents an attempt to detect the palaeobiogeographic provinces of Eocene ostracods by means of multivariate analyses (principle component analysis, Q‐mode cluster analysis and similarity index). These analyses are applied on a matrix composed of some selected Eocene species from 10 regions located at the southern Tethys and western Africa. The results identify three distinctive provinces, North Africa (Algeria, Tunisia, Libya, and Egypt), the Middle East (Jordan and Israel) and West Africa (Senegal, Togo, Ivory Coast and Nigeria). The distinctive affinities between these provinces suggests ostracod migration along the southern Tethys during the Eocene age.

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Les ostracodes paleogenes du Togo: Taxonomie, biostratigraphie, apports dans l'organisation et l'évolution du bassin

Cited by 33 publications

References 6 publications

Cretaceous–Tertiary boundary ostracodes from the Poty quarry, Pernambuco, northeastern Brazil

Cretaceous–Tertiary boundary ostracodes from the Poty quarry, Pernambuco, northeastern Brazil

Shallow marine ostracode turnover in response to environmental change during the Paleocene–Eocene thermal maximum in northwest Tunisia

Biostratigraphy, palaeoecology, and palaeobiogeography of the Middle–Late Eocene ostracods, north‐west Fayoum area, Egypt

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