👉 Tetrabelodont is a genus of extinct mammals that lived during the Late Cretaceous period (about 68 to 54 million years ago) in Europe. The species was known for its distinctive long, slender tail-like structure and is considered one of the earliest known tetrapods. The specific name "tetrabelodont" refers to the presence of three distinct tails or "tetra-" at the end of each arm, which are unique among modern tetrapods. This