Yes Tethys the daughter of Gaia and Ouranos was immortal, and the wife of Okeanos.
Although Oceanus and his wife Tethys did have immortal children they're true children are considered all of the aquatic bodies around the world such as oceans, seas, lakes etc.
Tethys was the daughter of Gaia and Ouranos.
Daimio tethys was created in 1857.
Tethys is one of the moons of Saturn
Yes; Metis was the daughter of Tethys and Oceanus.
Tethys did not have a Roman name, as she was a Greek goddess.
"Tethys" is pronounced as TEE-this.
Tethys Research Institute was created in 1986.
Tethys is not a boy; in Greek mythology, Tethys is a Titaness and a goddess associated with the nourishing flow of water. She is often depicted as the personification of the sea and is the wife of Oceanus. Tethys is typically characterized as a female figure, representing the nurturing aspects of the ocean.
Metis (moon of Jupiter) was a daughter of Tethys and Oceanus.
Tethys
Between the Jurassic and the Late Cretaceous (which started about 100 Ma), Gondwana began breaking up, pushing Africa and India north, across the Tethys and opening up the Indian Ocean. As these land masses pushed in on it from all sides, up until as recently as the Late Miocene (15 Ma), the Tethys ocean continued to shrink, becoming the Tethys Seaway or (second) Tethys Sea.