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Rock Formations

Measure

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Topo

Ecoregions

Public Lands

...

BASEMAPS

Default Weather

Temperature

Smoke

...

WEATHER

Upper Cretaceous marine rocks, unit 1 (Upper Great Valley Sequence) (CAKu1;0)

Geologic Formation in CA

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Lithology

Geologic Age

Cenomanian – Maastrichtian (100.5 Ma – 66 Ma ago)

Geologic Unit Label

Ku1

Upper Cretaceous sandstone, shale, and conglomerate

— USGS

Cymbophora gabbiana SPECIES

280 Observations

Gastropod Fossil Gastropoda (class), “Gastropod”

232 Observations

Glycymerita GENUS

228 Observations

Bivalve Fossil Bivalvia (class)

223 Observations

221 Observations

Taxonomy

Geographic Places

Geological Feature

Geologic Formation

Classified As

Geologic Formation

Upper Cretaceous marine rocks, unit 1 (Upper Great Valley Sequence) (CAKu1;0)

Upper Cretaceous marine rocks, unit 1 (Upper Great Valley Sequence) (CAKu1;0)

Upper Cretaceous marine rocks, unit 1 (Upper Great Valley Sequence) (CAKu1;0)