Prince George's County Department of Parks and Recreation
Dinosaur Park
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Explore Prehistoric Maryland


Maryland, 115 million years ago

Fossils found at Dinosaur Park help scientists reconstruct what Maryland was like during the early Cretaceous period, 115 million years ago. Select a topic below to explore what we know about prehistoric Maryland, and how we know it.

Where in time is Dinosaur Park?
What was Maryland like during the early Cretaceous?
What animals and plants lived at Dinosaur Park?
Where do fossils come from?
How do we identify incomplete fossils?