Where: Napa County, California (38.8° N, 122.3° W: paleocoordinates 37.0° N, 71.8° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Crack Canyon Formation (Great Valley Group), Valanginian to Valanginian (139.8 - 129.4 Ma)

• formation-level stratigraphic resolution

Environment/lithology: marine; lithified carbonate

Size class: macrofossils

Collected by Kiel

Primary reference: S. K. Kiel, K. A. C. Campbell, W. P. Elder and C. T. S. Little. 2008. Jurassic and Cretaceous Gastropods from Hydrocarbon Seeps in Forearc Basin and Accretionary Prism Settings, California. Acta Palaeontologica Polonica 53(4):679-703 [M. Clapham/M. Manojlovic/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 151972: authorized by Matthew Clapham, entered by Marko Manojlovic on 27.10.2013, edited by Jonathan Marcot

Creative Commons license: CC BY (attribution)