The Berivotra Formation is a Maastrichtian sedimentary formation of the Mahajanga Basin in Boeny, Madagascar. The claystones of the formation were deposited in a shallow marine environment. The Berivotra Formation overlies the fossil-rich Maevarano Formation, in which more fossils of Beelzebufo, also recovered from the Berivotra Formation, have been found. Many shark and ray teeth were collected by surface prospecting on outcrops of the Berivotra Formation, which is readily distinguished by its yellowish grey to pale olive colour, as opposed to the white and green fluvial sandstones that form the upper of the underlying Maevarano Formation.
Fossil content
The following fossils have been reported from the formation:
Beelzebufo ampinga
Cretolamna appendiculata, C. maroccana
Serratolamna serrata
Squalicorax kaupi, S. pristodontus
Carcharias sp. Parapalaeobates sp. Pristiophorus sp. cf. Brachyrhizodus sp.
See also
List of fossiliferous stratigraphic units in Madagascar
Geology of Madagascar
References
Further reading
M. D. Gottfried, J. A. Rabarison, and L. L. Randriamiarimanana. 2001. Late Cretaceous elasmobranchs from the Mahajanga Basin of Madagascar. Cretaceous Research 22:491-496