Berivotra Formation, Geological formation in Boeny, Madagascar
The Berivotra Formation is a geological layer in the Mahajanga Basin made up of pale yellowish and greenish-toned claystones. These deposits formed when the area was covered by shallow ancient seas.
This layer formed at the end of the Cretaceous period roughly 70 million years ago during a time of major ocean shifts. It preserves the remains of sharks, rays, and other sea creatures from that distant era.
Scientists from multiple countries conduct research at the Berivotra Formation to study the evolution of marine species and geological processes.
The layer is located in the Boeny region near Marovoay District and can be reached via local routes. Visitors should be prepared for tropical heat and rough terrain.
The layers contain teeth and bones of extinct shark and ray species now known only as fossils. These finds help scientists understand how marine predators evolved during the Cretaceous.
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