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150 million
years ago (Late Jurassic)

Find the clickable
hot spots for details and evidence, or follow the links below.
(Click
to see larger image)
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Description:
A herd of apatosaurs
moves slowly through a waist-high tangle of ferns
and Zamites,
grazing on succulent branch tips and leaves as the morning mist begins
to clear. This is a time before grass and flowering plants, a time when
the planet hosts a suite of unusual plants that will be extinct by the
end of the age of dinosaurs.
Formation:
Morrison
Artist: Jan
Vriesen
Best Viewing
Spots:
- Dinosaur
Ridge
- I-70 roadcut
at the Morrison exit
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Interstate 70 travels through this colorful roadcut just south of
Golden.
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