The Cetiodonts (Whale Toothed) are a family of Sharks that exist in the Allocene, 35 million years from now. All species are filter feeders and thus have baleen sieves to filter out tiny organisms in the water. All though they resemble the Whale Shark in appearance and diet, they are not descended from it. Instead they are descended from the tiny Bamboo Sharks (Family: Hemiscylliidae).
Cetiodonts live world wide, but are most common in the Indian and Pacific Oceans. The larger Cetiodonts are solitary, their immense size means nothing is large enough to eat them, while the smaller species and the pups of the larger species form small schools.
The largest species, the Emereld Leviathan (Gigicthys prasinus), reaches 34ms in length and weighs approximitly 190 metric tons. It lives in all the Oceans. Females migrate to the equator to lay their eggs. They can live up to 200 years.
The smallest species, the Speckled Pygmey Leviathan (Nanotitan maculatum), reaches only 6ms in length and weighs 2,800kg. They live in the waters that surround what used to be Australia and Indonesia. The females lay their eggs once a year.