Ankarafantsika Formation

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Ankarafantsika Formation
Stratigraphic range: Cenomanian
Type Geological formation
Underlies Basalt
Lithology
Primary Sandstone
Location
Coordinates 16°24′S46°54′E / 16.4°S 46.9°E / -16.4; 46.9 Coordinates: 16°24′S46°54′E / 16.4°S 46.9°E / -16.4; 46.9
Approximate paleocoordinates 37°48′S36°36′E / 37.8°S 36.6°E / -37.8; 36.6
Region Boeny, Mahajanga Province
CountryFlag of Madagascar.svg  Madagascar
Extent Mahajanga Basin
Type section
Named for Ankarafantsika National Park
Madagascar physical map.svg
Lightgreen pog.svg
Location of the formation in Madagascar

The Ankarafantsika Formation is a Late Cretaceous (Cenomanian) geologic formation of the Mahajanga Basin in the Boeny region of Madagascar, Africa. The fine-grained sandstones of the formation were deposited in a fluvial to lacustrine environment. [1] [2]

Contents

Fossil content

The following fossils have been reported from the formation:

See also

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References

  1. 1 2 Southeast of Marovoay at Fossilworks.org
  2. N. J. Mateer, P. Wycisk, L. L. Jacobs, M. Brunet, P. Luger, M. A. Arush, F. Hendriks, T. WEissbrod, G. Gvirtzman, E. Mbede, A. Dina, R. T. J. Moody, G. Weigelt, H. A. El-Nakhal, J. Hell and J. Stets. 1992. Correlation of nonmarine Cretaceous strata of Africa and the Middle East. Cretaceous Research 13:273-318
  3. Weishampel, et al. (2004). "Dinosaur distribution" Pp. 517-607. in Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds.): The Dinosauria, 2nd, Berkeley: University of California Press. 861 pp. ISBN   0-520-24209-2. " Pp. 517-607.