USGS MR8848F pebble, Mt. Eden Road (Jurassic to of the United States)

Where: Santa Clara County, California (37.3° N, 122.1° W: paleocoordinates 31.3° N, 62.2° W)

• coordinate based on nearby landmark

• hand sample-level geographic resolution

When: Bathonian to Bathonian (168.3 - 161.2 Ma)

• Franciscan pebble in Santa Clara Formation conglomerate

• bed-level stratigraphic resolution

Environment/lithology: basinal (siliceous); lithified, red chert

Size class: microfossils

Reposited in the USGS

Primary reference: E. V. Kohnen and B. L. Murchey. 1995. Age and origin of red chert pebbles in the lower part of the Santa Clara Formation, northern California. In E. M. Sangines, D. W. Andersen, A. B. Buising (eds.), Recent Geologic Studies in the San Francisco Bay Area 76:77-86 [M. Clapham/M. Clapham]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 185428: authorized by Matthew Clapham, entered by Matthew Clapham on 22.04.2017

Creative Commons license: CC BY (attribution)

Taxonomic list

 Nassellaria - Hsuidae
 Nassellaria - Eucyrtidiidae
Stichocapsa convexa Yao 1979 radiolarian
 Nassellaria - Parvicingulidae
Mirifusus aff. fragilis, "Praecaneta turpicula" = Praeparvicingula
Mirifusus aff. fragilis Baumgartner 1984 radiolarian
"Praecaneta turpicula" = Praeparvicingula radiolarian
 Spumellaria - Angulobracchiidae
? Angulobracchia sp. Baumgartner 1980 radiolarian
 Spumellaria - Xiphostylidae
Xiphostylus sp. Haeckel 1881 radiolarian