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Rock Formations

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Calva

genus

Sensitive Classification

Fossils are sensitive in nature and should not be collected unless it is done legally and responsibly. Vertebrate fossils are illegal to collect on public lands.

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Range Map

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Range Maps show field notes recorded by Natural Atlas contributors and other datasets via GBIF.org

Formations Found In

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

222 Observations

Quaternary volcanic flow rocks, unit 1 (Cascade Volcanic Field) (CAQv1;0)

75 Observations

Tertiary pyroclastic and volcanic mudflow deposits, unit 9 (Cascade Range) (CATvp9;0)

71 Observations

Miocene marine rocks (CAMI;0)

60 Observations

Jurassic marine rocks, unit 4 (Peninsular Ranges and Western Transverse Ranges) (CAJ4;0)

55 Observations

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