Titanochelon is a genus of giant chelonian reptiles 

Titanochelon is a genus of giant chelonian reptiles that lived in the Late Cretaceous period, approximately 80-66 million years ago. It is known for its massive size, with some species estimated to have reached lengths of over 5 meters and weighing up to 2 tons.

Titanochelon is a member of the family of giant sea turtles, the Protostegidae, which were some of the largest chelonians ever to have existed. These turtles lived in the shallow coastal waters of the ancient Tethys Ocean and were well adapted for life in the sea, with large flippers and a streamlined shell that allowed them to swim efficiently.

Despite their massive size, Titanochelon turtles were herbivores and subsisted on a diet of seaweed and other aquatic plants. Their large size allowed them to efficiently graze large areas of seaweed, which in turn helped to maintain the balance of the ecosystem by preventing the growth of unwanted plants.

Fossils of Titanochelon have been found in several countries, including Russia, China, and Mongolia. These fossils have provided valuable insights into the anatomy and biology of these ancient reptiles, and have helped to fill in some of the gaps in our understanding of the evolution of sea turtles.

Unfortunately, Titanochelon, like many other species from the Late Cretaceous period, became extinct at the end of the period, likely due to a combination of factors including changing sea levels, competition from other species, and volcanic activity.

Despite its extinction, Titanochelon remains an important part of the rich and diverse history of life on Earth. These giant sea turtles were once a dominant presence in the ancient oceans and their fossils continue to provide valuable insights into the evolution of life on our planet.