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Trove Of Fossils Discovered Near Valley Springs

/ CBS News

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Mastodon skull in ground photo by East Bay Municipal Utility District

Mastodon-skull-in-ground-photo-by-East-Bay-Municipal-Utility-District.jpg

Mastodon skull photo by California State University, Chico

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Mastodon tooth photo by East Bay Municipal Utility District

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Mastodon tusks photo by California State University, Chico

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Petrified tree in ground photo by East Bay Municipal Utility District

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Tapir jaw photo by East Bay Municipal Utility District

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Tortoise shell photo by East Bay Municipal Utility District

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