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100 million
years ago (Cretaceous)
Find the clickable
hot spots for details and evidence, or follow the links below. (Click
to see larger image) |
Description:
Along the shore of a wide, salty sea, low tide has exposed a broad-rippled
sandy
surface. Mighty rivers flowing from mountains far to the west bring
sand and gravel down to the coast. Along the shoreline is a dank coastal
forest containing herbaceous ferns (Astralopteris
and Matonidium),
broad-leaved trees (Sapindopsis,
Liriophyllym,
and Protophyllum)
and strange conifers. A few Iguanodon
dinosaurs wander down the beach, leaving their footprints
on the rippled surface.
Formation:
Dakota
Sandstone
Artist: Jan
Vriesen
Best Viewing
Spots:
- Dinosaur
Ridge
- Roxborough
State Park
- Garden of
the Gods Park and Visitor Center
- I-70 roadcut
at the Morrison exit
- Deer Creek
Canyon Park
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Dinosaur Ridge Visitor Center
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