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More Dinosaur Fact Sheets EnchantedLearning.com
Herrerasaurus Fact Sheet
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Dinosaur/Paleontology Dictionary
NAME: Meaning - Herrerasaurus means "Herrera's lizard" named for Don Victorino Herrera
Pronounced - her-AIR-a-SAWR-us
Named By - Osvaldo A. Reig
When Named - 1963
DIET: Carnivore (meat-eater)
SIZE: Length - 13 ft (3.9 m) long
Height - 4 ft (1.1 m) tall at the hips
Weight - 460 pounds (210 kg)
WHEN IT LIVED: Triassic period, about 235-230 million years ago
WHERE IT LIVED: Fossils have been found in the Ishigualasto region, San Juan Province, northwestern Argentina, South America.
FOSSILS: The first Herrerasaurus fossil was found in 1958 by Don Victorino Herrera, a local rancher. Three partial skeletons have been found. The first Herrerasaurus skull wasn't found until 1988.
CLASSIFICATION:
  • Kingdom Animalia (animals)
  • Phylum Chordata (having a hollow nerve chord ending in a brain)
  • Class Archosauria (diapsids with socket-set teeth, etc.)
  • Order Saurischia - lizard-hipped dinosaurs
  • Suborder Theropoda - bipedal carnivores
  • Genus Herrerasaurus
  • Species H. ischigualastensis (type species named by Reig, 1963)
INTERESTING
FACTS:
Herrerasaurus was one of the earliest dinosaurs. It walked on two long legs and had sharp teeth. The arms were short and the fingers had sharp claws.




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