👉 The term "gerrhosauridae" is used to describe a group of prehistoric creatures, which lived during the Late Cretaceous period (about 69-72 million years ago) in what is now Argentina and western Brazil. The Gerrhosauridae were known for their large jaws and powerful jaws, which they used to hunt prey such as small mammals. Gerrhosaurids are classified into three groups: the Gerrhosaurid group, the Saur