Claosaurus agilis

Claosaurus agilis

† The type species of Claosaurus, C. agilis ('agile broken lizard') was described by O.C. Marsh in 1872 from the Niobrara Chalk of Kansas. Among the earliest hadrosaurid dinosaurs known from North America, it was a slender biped approximately 4 metres long that inhabited coastal environments near the Western Interior Seaway during the Late Cretaceous.

Diet & Feeding

Herbivore

Claosaurus agilis was a plant-eating dinosaur. Herbivores typically fed on ferns, cycads, conifers, and other vegetation available during their era. Many herbivorous dinosaurs developed specialized teeth and digestive systems for processing tough plant material.

Time Period

Cretaceous Late Mesozoic Era

Claosaurus agilis lived during the Cretaceous Late period of the Mesozoic Era, approximately 100.5 to 66.0 million years ago.

The final age of dinosaurs, featuring iconic species like Tyrannosaurus rex, Triceratops, and Velociraptor. Dinosaurs reached their peak diversity before the catastrophic asteroid impact at the Chicxulub crater ended the Mesozoic Era.

Discovery & Naming

Discovery Location United States

Quick Facts

Geologic Period Cretaceous Late
Diet Herbivore

Frequently Asked Questions

When did Claosaurus agilis live?
Claosaurus agilis lived during the Cretaceous Late period (Mesozoic Era, 100.5–66.0 million years ago).
What did Claosaurus agilis eat?
Claosaurus agilis was a herbivore.
Where were Claosaurus agilis fossils found?
Fossils of Claosaurus agilis were found in United States.

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