Tethyan Trench Tethyan Trench The Tethyan Trench was an ancient oceanic trench that existed in the northern part of the Tethys Ocean during the middle Mesozoic to early Cenozoic eras. The Tethyan Trench formed when the Cimmerian Plate was subducting under eastern Laurasia, around 200 million years ago, in the Early Jurassic. The Tethyan Trench extended at its greatest during Late Cretaceous to Paleocene, from what is now Greece to the Western Pacific Ocean. Subduction at the Tethyan Trench probably caused the continents Africa and India to move towards Eurasia, which resulted in the opening of the Indian Ocean. When the Arabian
Chapada Diamantina National Park Chapada Diamantina National Park The Chapada Diamantina National Park () is a national park in the Chapada Diamantina region of the State of Bahia, Brazil. The terrain is rugged, and mainly covered by flora of the Caatinga biome. The park is in the Caatinga biome, and covers . It was created by decree 91.655 of 17 September 1985, and is administered by the Chico Mendes Institute for Biodiversity Conservation. The park covers parts of the municipalities of Palmeiras, Mucugê, Lençóis, Ibicoara and Andaraí in the state of Bahia. The park is in the Chapada Diamantina, a plateau bounded by cliffs