Where: Santa Clara County, California (37.3° N, 122.1° W: paleocoordinates 30.8° N, 60.6° W)
• coordinate based on nearby landmark
• hand sample-level geographic resolution
When: Bajocian (170.3 - 168.3 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 185425: authorized by Matthew Clapham, entered by Matthew Clapham on 22.04.2017
Creative Commons license: CC BY (attribution)
Taxonomic list
| Protozoa | |
|
Pantanellium sp. Pessagno 1977 radiolarian | |
|
Angulobracchia sp. Baumgartner 1980 radiolarian | |
|
Emiluvia sp. Foreman 1973 radiolarian | |
|
Xiphostylus sp. Haeckel 1881 radiolarian | |
|
Ristola sp. Pessagno and Whalen 1982 radiolarian | |
|
Stichocapsa convexa Yao 1979 radiolarian | |
|
Parahsuum (Lupherium) sp. Yao 1982 radiolarian
Transhsuum sp. Takemura 1986 radiolarian | |
"Protonuma sp." = Protunuma, Unuma aff. echinatus
"Protonuma sp." = Protunuma Ichikawa and Yao 1976 radiolarian
Unuma aff. echinatus Ichikawa and Yao 1976 radiolarian | |