👉 The term "bellerophontidae" refers to a group of extinct reptiles that lived during the Late Cretaceous period, approximately 68-59 million years ago. Bellerophontidae were characterized by their distinctive long snout and large eyes, as well as their ability to breathe through their nostrils. The earliest known member of this group was "Bellerophodon", which lived around 67 million years ago in the Late Cretaceous period