Ankarafantsika Formation

Ankarafantsika Formation
Ankarafantsika Formation
Stratigraphic range: Cenomanian
Type	Geological formation
Underlies	Basalt
Lithology
Primary	Sandstone
Location
Coordinates	16°24′S 46°54′E / 16.4°S 46.9°E
Approximate paleocoordinates	37°48′S 36°36′E / 37.8°S 36.6°E
Region	Boeny, Mahajanga Province
Country	Madagascar
Extent	Mahajanga Basin
Type section
Named for	Ankarafantsika National Park
	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]

Fossil content

The following fossils have been reported from the formation:

Color key

Taxon	Reclassified taxon	Taxon falsely reported as present	Dubious taxon or junior synonym	Ichnotaxon	Ootaxon	Morphotaxon

Notes
Uncertain or tentative taxa are in small text; ~~crossed out~~ taxa are discredited.

Sauropods of the Ankarafantsika Formation
Genus	Species	Location	Stratigraphic position	Material	Notes	Image
Sauropoda indet.^[1]^[3]	Indeterminate				An indeterminate sauropod

1 2 Southeast of Marovoay at Fossilworks.org
↑ 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
↑ 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.