Today is the birthday of American Paleontologist Paul Sereno of the University of Chicago most famous for discovering and naming the earliest known meat eating dinosaur, the eoraptor. He is equally well known in popular culture for his discovery of the Sarcosuchus imperator, popularly known as SuperCroc. In addition to the eoraptor, Dr. Sereno has led or aided in the discovery of at least two dozen major finds.
The Eoraptor (and similarly the eodromaeus, pictured above) takes its name from the Ancient Greek words eos (ηως) meaning dawn and the Latin word raptor meaning a thief or plunderer. Despite being the earliest known ancestor of Tyrannosaurus Rex, the eoraptor only grew to about one meter in length and weighed a scant ten kilograms. Eodromeaus also used the dawn prefix, with the Ancient Greek word dromaeus meaning runner, the dawn runner.