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Geoffrey Cox: Dinosaurs - Einiosaurus Our knowledge of dinosaurs is based mainly on fossils, dinosaur tracks, the nests some of them built, and even the eggs sometimes found in those nests. Which is how we know the armored dinosaurs were, for the most part, inoffensive reptiles that lived somewhat passive lives, browsing on Cretaceous vegetation with small weak teeth and depending on their rugged body armor to withstand any attack from a giant carnivore. There was, however, an ornithischian suborder that decided to fight back. These were the ceratopsians, or horned dinosaurs, the last to evolve from ornithopod ancestors. They lived in North America and northeastern Asia, and had a relatively short geological life span. Scientists believe ceratopsids roamed in large herds, browsed on low-growing vegetation, and grew to be as long as 30 feet. They had huge heads, bulky bodies and pillarlike limbs with hooflike claws. One of the most spectacular of the ceratopsians was Einiosaurus, which lived during the late Cretaceous. The front of this powerful creature's gigantic head was shaped like a huge armored-plated valentine and came down to a horny point on the nose, with two long, formidable spikes protruding from its elaborate neck frill. Paleontologists are still debating over the use of these spikes. Their purpose -- besides warding off attacks by carnivorous dinosaurs -- might have been to battle over territory or mates, or even to flaunt as a gaudy display. This painting was originally published on the Fleetwood® First Day Cover for the U.S. 32¢ Einiosaurus stamp issued May 1, 1997. Artwork Copyright © 1997 Unicover Corporation. All Rights Reserved under United States and international copyright laws. You may not reproduce, distribute, transmit, or otherwise exploit the Artwork in any way. Images of the Artwork may be watermarked and/or digitally watermarked. Any sale of the physical original does not include or convey the Copyright or any right comprised in the copyright.
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