Hypacrosaurus facts for kids
Quick facts for kids HypacrosaurusTemporal range: Upper Cretaceous 75–67 mya
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Hypacrosaurus
Brown, 1913
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Hypacrosaurus (meaning "almost the largest lizard") was a large, plant-eating, hollow-crested duck-billed dinosaur similar to Corythosaurus. It was about 30 feet (9 m) long, had almost 40 rows of cheek teeth, and a short toothless beak. A row of long spines from its vertebrae formed a high fin along its back. The fossils are dated as 75 to 67 million years ago.
It is known from the remains of two species in the Upper Cretaceous of Alberta, Canada, and Montana, United States. It is the latest hollow-crested duckbill known from good remains in North America. It was an obscure genus until the discovery in the 1990s of nests, eggs, and hatchlings belonging to one of the species.
Images for kids
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H. altispinus skull and neck
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H. stebingeri holotype skull
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Life restoration of H. altispinus
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H. altispinus skull, AMNH
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H. stebingeri nest
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Hypacrosaurus MOR 548 supraoccipital with microscopic magnification showing the preserved chondrocyte-like structures, in comparison to those of an emu
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Restoration of H. altispinus in environment
See also
In Spanish: Hypacrosaurus para niños
