👉 Stygnetobates is a genus of extinct, short-necked mammals that lived during the Early Cretaceous period (about 65 to 70 million years ago) in what is now Europe and Asia. They were characterized by their long necks and lack of limbs or legs, which allowed them to move on two legs. Stygnetobates are known from fossil records from around the world, though exact dates of extinction are not well-documented.