. Bulletins of American paleontology. Paleocene Nigeria: Adegoke 21 modem planktonic foraminiferal bathymetric zones proposed by us for the adjoining Gulf of Guinea Shelf and upper Continental Slope (Adegoke and others, 1971), the depositional environment was prob- ably not more than 25 meters deep. Simultaneously, a sequence of limestones and calcareous shales, the Dange Formation overlain by the Kalambaina Formation ac- cumulated in the Sokoto embayment to the north. The occurrence of Gisortia brevis Douville (Parker, 1964; Adegoke, 1972a, 1972b, 1973) and identical Paleocene ostracodes (Rey
. Bulletins of American paleontology. Paleocene Nigeria: Adegoke 21 modem planktonic foraminiferal bathymetric zones proposed by us for the adjoining Gulf of Guinea Shelf and upper Continental Slope (Adegoke and others, 1971), the depositional environment was prob- ably not more than 25 meters deep. Simultaneously, a sequence of limestones and calcareous shales, the Dange Formation overlain by the Kalambaina Formation ac- cumulated in the Sokoto embayment to the north. The occurrence of Gisortia brevis Douville (Parker, 1964; Adegoke, 1972a, 1972b, 1973) and identical Paleocene ostracodes (Reyment, 1965a, fig. 11) in both areas suggest direct communication. Apart from the fev/ species in common, significant differences existed between the faunal aspect of the Saharan area and that of the coastal area during the Paleocene. This suggests the establish- ment of some degree of provincialism. Hence the writer suggested. 4. Generalized map showing the break-up of the trans-saharan epeiric sea during late Paleocene of early Eocene (?). Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Paleontological Research Institution (Ithaca, N. Y. ); Columbia University. Ithaca, N. Y. , Paleontological Research Institution [etc. ]
Size: 1718px × 1454px
Photo credit: © Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorpaleontologicalresearchinstitutionit, bookcentury1900
