Claosaurus agilis klayuh-SƆːRUHS

"broken"

You 1.8 m (5.9 ft) tall
Claosaurus 3.7 m (12.1 ft) long
3 people holding hands
Length
3.7 m (12.1 ft)
Period
Late Cretaceous (87–82 Mya)
Place
North America
Food
Herbivore
Clade
Dinosauria

Claosaurus ( ; Greek κλάω, klao meaning ‘broken’ and σαῦρος, sauros meaning ‘lizard’; “broken lizard”, referring to the odd position of the fossils when discovered) is a genus of hadrosauroid dinosaur that lived during the Late Cretaceous Period (Santonian-Campanian) of what is now North America. The type and only known valid species is Claosaurus agilis. Traditionally classified as an early member of the family Hadrosauridae, a 2008 analysis found Claosaurus to be outside of the clade containing Hadrosaurus and other hadrosaurids, making it the closest non-hadrosaurid relative of true hadrosaurids within the clade Hadrosauromorpha.

What we know

  • Named by Marsh, 1890.
  • Body length estimated at about 3.7 m.
  • Fossils found in North America.