👉 The term "chiasmodontidae" is a genus of extinct mammals that lived during the Late Cretaceous period, which was approximately 72 to 65 million years ago. These animals are known for their large, elongated jaws and teeth, as well as their distinctive beak-like teeth used for chiseling food into the ground. Chiasmodontidae were characterized by a long, slender body that resembled that of a bird but with a long, pointed