Bryan Kneale (British, B. 1930) "Dinosaurs - Tyrannosaurus" Colored Pencil on Illustration Board. Provenance: Collection of James A. Helzer (1946-2008), Founder of Unicover Corporation. This artwork was originally published on the Fleetwood First Day Cover for the Great Britain Owens's Dinosauria 1841 31p Tyrannosaurus stamp issued August 20, 1991. In 1842 British anatomist Sir Richard Owen coined the word dinosaur from two Greek words meaning "terrible lizard." Although dinosaurs were not lizards, the term aptly applied to the best known and most fearsome of all dinosaurs -- the Tyrannosaurus. Its name meant "tyrant lizard," and this ravenous meat-eater conducted an unrivaled reign of terror as master of the Mesozoic Era. Towering twenty feet above the ground, the Tyrannosaurus possessed an enormous head and six-inch, dagger-like teeth which slashed into prey with merciless efficiency. Its short forelimbs served little function other than grasping objects at close range, and the behemoth's long tail acted as a counter-balance for its cumbersome body. While the Tyrannosaurus was undoubtedly the most powerful and dangerous dinosaur, it was also one of the rarest. Scientists estimated that one hundred square miles of territory served as the habitat for only one Tyrannosaurus. Its remains are generally uncovered in the same deposits as the remains of its most likely prey -- the more plentiful great armored dinosaurs such as Triceratops and Protoceratops. Millions of years after the last Tyrannosaurus died, this terrifying creature continues to stimulate scientific investigation and linger in the mythological fantasies of mankind. Image Size: 17.5 x 21.75 in. Overall Size: 23.75 x 29.75 in. Unframed. (B13215)