Biogeography of the Saharan Gretaceous and Paleocene epicontinental transgressions

Reyment, Richard A.

doi:10.1016/0195-6671(80)90041-5

Cited by 86 publications

(58 citation statements)

References 10 publications

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“…Marine sediments interbedded within brackish-water deposits are preserved east of the subsiding Hoggar shield. The trans-Saharan seaway is nonetheless probably re-established, as suggested by the faunal similarities between the equatorial Atlantic Ocean and the trans-Saharan seaway (Reyment, 1980;Luger, 2003). It is likely that the connection is made through the Ye et al | Evolution of northwestern Africa and its Atlantic margins GEOSPHERE | Volume 13 | Number 4 Bida rift, which began to form in the Campanian and continues to develop during the Maastrichtian under shallow-marine environment (Kogbe et al, 1983;Akande et al, 2005;Ojo and Akande, 2009).…”

Section: Maastrichtian (72-66 Ma): Brief Continental Flooding Andmentioning

confidence: 99%

“…A "trans-Saharan seaway" connected the Tethys Ocean, in the north, to the equatorial Atlantic Ocean, in the south (Reyment, 1980;Luger, 2003), and shallow-marine brackish shales and limestones were deposited (Dufaure et al, 1984;Zanguina et al, 1998). Thermochronological data suggest burial of the Hoggar and Reguibat shields (Rougier et al, 2013;Leprêtre et al, 2014Leprêtre et al, , 2015English et al, 2016), consistently with subsidence under the "trans-Saharan seaway" and the northwestern Sahara basin.…”

Section: Late Cenomanian (97-93 Ma): Maximum Continental Flooding (Fimentioning

confidence: 99%

“…1 and 2). The Upper Cretaceous sequences recorded mostly transgressions far inland (Reyment, 1980;Dufaure et al, 1984). Marine sedimentation is recorded repeatedly until the Late Paleo ceneEarly Eocene, particularly in the Iullemmeden and Chad basins (e.g., Radier, 1959;Greigert, 1966;Kogbe, 1980;Reyment, 1980;Moody and Sutcliffe, 1991).…”

Section: Geological Outline and Earlier Workmentioning

confidence: 99%

“…The Upper Cretaceous sequences recorded mostly transgressions far inland (Reyment, 1980;Dufaure et al, 1984). Marine sedimentation is recorded repeatedly until the Late Paleo ceneEarly Eocene, particularly in the Iullemmeden and Chad basins (e.g., Radier, 1959;Greigert, 1966;Kogbe, 1980;Reyment, 1980;Moody and Sutcliffe, 1991). Those series are overlain by fluvial sediments of the Late Eocene-Early Oligocene "Continental Terminal" (Lang et al, 1986(Lang et al, , 1990Chardon et al, 2016;Fig.…”

Section: Geological Outline and Earlier Workmentioning

confidence: 99%

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Paleogeographic and structural evolution of northwestern Africa and its Atlantic margins since the early Mesozoic

Chardon

Rouby

et al. 2017

Geosphere

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The geological evolution of northwestern Africa and its continental margins is investigated in the light of nine Meso-Cenozoic paleogeological maps, which integrate original minimal extent of sedimentary deposits beyond their present-day erosional limits. Mapping is based on a compilation of published original data on the stratigraphy and depositional environments of sediments, structures, magmatism, and low-temperature thermochonology, as well as on the interpretation of industrial seismic and borehole data.We show that rifting of the equatorial domain propagated eastward from the Central Atlantic between the Valanginian (ca. 140 Ma) and the Aptian (ca. 112 Ma) as an en echelon strike-slip and rift system connected to an inland rift network. This network defines a six-microplate synrift kinematic model for the African continental domain. We document persistent, long-wavelength eroding marginal upwarps that supplied clastic sediments to the offshore margin basins and a large intracratonic basin. The latter acted as a transient sediment reservoir because the products of its erosion were transferred both to the Tethys (to the north) and the Atlantic Ocean. This paired marginal upwarpintra cratonic basin source-to-sink system was perturbed by the growth of the late Paleogene Hoggar hotspot swell that fragmented the intracratonic basins into five residual depocenters. By linking the evolution of the continental margins to that of their African hinterland, this study bears important implications for the interplay of long-wavelength deformation and sediment transfers over paired shield-continental margin systems.

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Section: Maastrichtian (72-66 Ma): Brief Continental Flooding Andmentioning

confidence: 99%

Section: Late Cenomanian (97-93 Ma): Maximum Continental Flooding (Fimentioning

confidence: 99%

Section: Geological Outline and Earlier Workmentioning

confidence: 99%

Section: Geological Outline and Earlier Workmentioning

confidence: 99%

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Paleogeographic and structural evolution of northwestern Africa and its Atlantic margins since the early Mesozoic

Chardon

Rouby

et al. 2017

Geosphere

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“…2). This time was also characterized by globally elevated sea levels and subsequent development of a north-south trending, epicontinental seaway, known as the Trans-Saharan Sea (TSS), which inundated portions of the Taoudeni and Iullemeden basins (Greigert, 1966;Reyment, 1980 fig. 1).…”

Section: Introductionmentioning

confidence: 99%

Dyrosaurid (Crocodyliformes: Mesoeucrocodylia) Fossils from the Upper Cretaceous and Paleogene of Mali: Implications for Phylogeny and Survivorship across the K/T Boundary

Hill¹,

McCartney²,

Roberts³

et al. 2008

Am Museum Novitates

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We describe new dyrosaurid fossils from three localities in Mali, representing strata of Maastrichtian, Paleocene, and Eocene ages. The fossils significantly extend the temporal and geographic ranges of several known dyrosaurid taxa. Rhabdognathus keiniensis and Chenanisuchus lateroculi are identified for the first time from Maastrichtian sediments. Additional material is referred to Phosphatosaurus gavialoides and, tentatively, the genus Sokotosuchus. These discoveries represent the first occurrence of Chenanisuchus and possibly of Sokotosuchus from Mali. Previously unknown morphological character states are incorporated into existing data matrices, reducing the amount of missing data. Phylogenetic analyses largely corroborate prior hypotheses of dyrosaurid relationships, but indicate a need for new characters to resolve the relationships of certain genera and species. The occurrence of both basal (e.g., Chenanisuchus lateroculi) and highly nested (e.g., Rhabdognathus keiniensis) members of Dyrosauridae on both sides of the K/T boundary indicates that dyrosaurid diversification was well underway by the latest Cretaceous, and that most, if not all dyrosaurid species survived the extinction event. The geology of the Mali's Tilemsi Valley is clarified; some rocks previously assigned to the Iullemmeden Basin actually represent extensions of other basins: the Taoudeni Basin and Gao Trench.

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Cenomanian to Turonian foraminifera from Ashaka (NE Nigeria): quantitative analysis and palaeoenvironmental interpretation

Gebhardt

1997

Cretaceous Research

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Biogeography of the Saharan Gretaceous and Paleocene epicontinental transgressions

Cited by 86 publications

References 10 publications

Paleogeographic and structural evolution of northwestern Africa and its Atlantic margins since the early Mesozoic

Paleogeographic and structural evolution of northwestern Africa and its Atlantic margins since the early Mesozoic

Dyrosaurid (Crocodyliformes: Mesoeucrocodylia) Fossils from the Upper Cretaceous and Paleogene of Mali: Implications for Phylogeny and Survivorship across the K/T Boundary

Cenomanian to Turonian foraminifera from Ashaka (NE Nigeria): quantitative analysis and palaeoenvironmental interpretation

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