A Guide to the Dinosaurs of Colorado


On Dinosaur Classification

On Scientific Names

The Basics of Taxonomy

An Introduction to Cladistcs

Taxonomy of the Dinosaurs of Colorado

Cladogram of the Dinosaurs of Colorado

About the Dinosaurs of Colorado

Geological
Time Chart


   

Genus Dryosaurus

Includes material originally referred to: Dysalotosaurus, Laosaurus.

Taxonomy: Recognized Species
Class Dinosauria
  Subclass Ornithischia
    Order Ornithopoda
      Family Dryosauridae
D. altus Marsh, 1878
  Colorado, Wyoming, Utah
D. lettowvorbecki Virchow, 1919
  Mtwara, Tanzania

Species in Colorado: Dryosaurus altus

Size: Where found:
Up to 10 feet
3 meters
Morrison Formation of Colorado, Wyoming, and Utah

Period: Age:
Late Jurassic Kimmeridgian - Tithonian
  144 to 156 Ma.

Material Found
D. altus
Nearly complete skeleton, ~7 partial skeletons.
D. lettowvorbecki
Disassociated cranial and postcranial elements.


Information compiled by Donald L. Blanchard


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