👉 Heteropodinae is a family of extinct, highly specialized tetrapods that lived during the Late Cretaceous period, approximately 65-70 million years ago. They were primarily herbivorous and had a flattened body shape with short limbs adapted for walking on land, but lacked a backbone. Their bones were highly compressed and their skeletal remains were characterized by the presence of large, flexible appendages, including claws, tusks, and teeth.