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Colophon
Geology, Stratigraphic--Mesozoic
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Geology, Stratigraphic--Cretaceous
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Hornbrook Formation (Calif. and Or.)
Hornbrook Formation (Calif. and Or.)
Geographic
sh93001396
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id.loc.gov
Broader Terms (3)
Formations (Geology)--California
Formations (Geology)--Oregon
Geology, Stratigraphic--Cretaceous
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