Ankarafantsika Formation | |
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Stratigraphic range: Cenomanian | |
Type | Geological formation |
Underlies | Basalt |
Lithology | |
Primary | Sandstone |
Location | |
Coordinates | 16°24′S46°54′E / 16.4°S 46.9°E Coordinates: 16°24′S46°54′E / 16.4°S 46.9°E |
Approximate paleocoordinates | 37°48′S36°36′E / 37.8°S 36.6°E |
Region | Boeny, Mahajanga Province |
Country | Madagascar |
Extent | Mahajanga Basin |
Type section | |
Named for | Ankarafantsika National Park |
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]
The following fossils have been reported from the formation:
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