Where: Tehama County, California (40.0° N, 122.5° W: paleocoordinates 38.0° N, 71.7° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Buchia keyserlingi zone, Valanginian (139.8 - 132.9 Ma)

• Valanginian. About 450 ft above base of Buchia keyserlingi zone

• bed-level stratigraphic resolution

Environment/lithology: marine; lithology not reported

Size class: macrofossils

Collected by R. W. Imlay in 1965; reposited in the USNM

Primary reference: D. L. Jones, E. H. Bailey, and R. W. Imlay. 1969. Structural and stratigraphic significance of the Buchia zones in the Colyear Springs-Paskenta Area, California. United States Geological Survey Professional Paper (647-A)A1-A24 [J. Marcot/J. Marcot]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 224846: authorized by Jonathan Marcot, entered by Jonathan Marcot on 06.04.2022

Creative Commons license: CC BY (attribution)