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
Shire of Diamantina Service. On 11 November 1879, the Diamantina Division was established as one of 74 divisions around Queensland under the "Divisional Boards Act 1879" with a population of 1153. In October 1880, part of Diamantina Division was separated to create Gregory Division. On 21 June 1883, the boundaries between Diamantina Division and Bulloo Division were adjusted. With the passage of the Local Authorities Act 1902, Diamantina Division became the Shire of Diamantina on 31 March 1903. The Shire of Diamantina includes the following: Diamantina Shire Council operates public libraries in Bedourie and Birdsville. Shire of Diamantina The Shire of Diamantina is