👉 A megalodontidae is a group of extinct dinosaurs that lived during the late Cretaceous period, about 69 to 75 million years ago. The term "megalodont" refers to their large size and long necks, which allowed them to reach high places in the air and hunt for food like insects and reptiles. The term "odontidae" comes from the Greek word "odontos," which means "to bite," referring to the teeth of meg