Ankarafantsika Formation

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]

Ankarafantsika Formation
Stratigraphic range: Cenomanian
Type	Geological formation
Underlies	Basalt
Lithology
Primary	Sandstone
Location
Coordinates	16.4°S 46.9°E / -16.4; 46.9
Approximate paleocoordinates	37.8°S 36.6°E / -37.8; 36.6
Region	Boeny, Mahajanga Province
Country	Madagascar
Extent	Mahajanga Basin
Type section
Named for	Ankarafantsika National Park
Location of the formation in Madagascar

Fossil content

The following fossils have been reported from the formation:

• Sauropoda indet.^[1][3]

See also

• List of dinosaur-bearing rock formations
• List of stratigraphic units with indeterminate dinosaur fossils
• List of fossiliferous stratigraphic units in Madagascar
• Geology of Madagascar