Tethys Ocean instance of historic ocean
The Tethys Ocean  (Greek: Τηθύς Tēthús), also called the Tethys Sea or the Neo-Tethys, was a prehistoric ocean during much of the Mesozoic Era and early Cenozoic Era, located between the ancient continents of Gondwana and Laurasia, before the opening of the Indian and Atlantic oceans during the Cretaceous Period. 
It was preceded by the Paleo-Tethys Ocean, which lasted between the Cambrian and the Early Triassic, while the Neotethys formed during the Late Triassic and lasted until the early Eocene (about 50 million years ago) when it completely closed. A portion known as the Paratethys formed during the Late Jurassic, was isolated during the Oligocene (34 million years ago) and lasted up to the Pliocene (about 5 million years ago), when it largely dried out. The ocean basins of Europe and Western Asia, namely the Mediterranean Sea, Black Sea and Caspian Sea, are each remnants of the Paratethys Ocean.See also
Hațeg Island – Prehistoric island
List of ancient oceans – List of Earth's former oceans
Paleo-Tethys Ocean – Ocean on the margin of Gondwana between the Middle Cambrian and Late Triassic
Pannonian Sea – Shallow ancient sea where the Pannonian Basin in Central Europe is today
Paratethys – Prehistoric shallow inland sea in Eurasia
Piemont-Liguria Ocean – Former piece of oceanic crust that is seen as part of the Tethys Ocean
Ruhpolding Formation
Tethyan Trench – Ancient oceanic trench
type of example of manifestation of representation of