👉 A triconodontid is a type of fossilized reptile that lived during the late Cretaceous period, approximately 68 to 66 million years ago. These animals were characterized by their unique and distinctive features, including elongated snout-like structures, large jaws with serrations, and a specialized mouth made from hard, spiky teeth. They were also known for their ability to breathe underwater using the gills located in their mouths. Triconodontid fossils have been
triconodontid