Byronosaurusis a genus of troodontid which lived during the Late Cretaceous Period. It was named for Byron Jaffe, "in recognition of his family's support for the Mongolian Academy of Sciences-American Museum of Natural History Paleontological Expeditions." The first example of Byronosaurus was discovered in 1993 at UKhaa Tolgod, Gobi Desert, Mongolia; a second was found in 1996 at Bolor's Hill, about 8 kilometers away (5 miles).
Byronosaurus was a small, agile dinosaur that was probably only 1.5 meters long (5 ft) and 50 centimeters high (17 in). It weighed only about 4 kilograms (9 lbs).
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