User:Abyssal/Portal:Jurassic/DYK/4


 * ... that over the course of the history of stegosaur research, their iconic back plates have been thought to function as armor plating, to regulate body temperature, or to attract mates?
 * ... that the ammonite Hildoceras bifrons (pictured) has been used as an index fossil to help identify the age of rocks?
 * ...that the prehistoric marine reptile Excalibosaurus (pictured) was named after King Arthur's sword because of the sword-like appearance of its upper jaw?
 * ... that the extinct hangingfly genera Formosibittacus, Jurahylobittacus, and Mongolbittacus are only known from the Middle Jurassic of China?
 * ... that Shantungosuchus, a small, primitive crocodile from the Cretaceous period, was terrestrial instead of aquatic?