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Rock Formations

Measure

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Topo

Ecoregions

Public Lands

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BASEMAPS

Default Weather

Temperature

Smoke

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WEATHER

Chugwater Formation

Geologic Formation in WY, ID, MT

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Lithology

Other (6,351 mi²)

Geologic Age

Early Triassic – Late Triassic (252.23 Ma – 201.5 Ma ago) (668 mi²)

Permian – Late Triassic (299.05 Ma – 201.5 Ma ago) (564 mi²)

Early Triassic – Jurassic (252.23 Ma – 145 Ma ago) (159 mi²)

Other (226 mi²)

Geologic Unit Label

TRcd (403 mi²)

TRPcg (605 mi²)

TRc (400 mi²)

Other (209 mi²)

Chordate Fossil Chordata (phylum), “Chordates”

11 Observations

Biseriella GENUS

Gryphaea GENUS · “Devil's Toenail”

Camarasaurus GENUS

Allosaurus fragilis SPECIES

Taxonomy

Geographic Places

Geological Feature

Geologic Formation

Classified As

Geologic Formation

Chugwater Formation

Chugwater Formation

Chugwater Formation