Iguanodon footprints

Dinosaur footprints
Dinosaur footprints

Fossil evidence
Dinosaur footprints can be preserved as impressions in sand. More often, however, they are preserved when a dinosaur has stepped into mud and the impression has dried and filled with sand. The resulting sand cast is a three-dimensional model of the dinosaur's foot. This track was collected in westernmost Colorado.

Fossil evidence
Dinosaur Ridge, in Morrison, Colorado, is one of the best dinosaur tracksites near a major metropolitan area in the United States.

 
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