Where: Santa Cruz County, California (37.2° N, 122.1° W: paleocoordinates 35.6° N, 113.3° W)
• coordinate estimated from map
• small collection-level geographic resolution
When: San Lorenzo Formation, Oligocene (33.9 - 23.0 Ma)
• Stratigraphically 195 feet below top of San Lorenzo formation, 3 feet above stream level, in dark gray, massive, coarse-grained siltstone.
• bed-level stratigraphic resolution
Environment/lithology: marine; lithified siltstone
Size class: macrofossils
Reposited in the UCMP
Primary reference: F. R. Sullivan. 1962. Foraminifera from the type section of the San Lorenzo Formation, Santa Cruz County, California. University of California Publications in Geological Sciences 37(4):233-352 [M. Clapham/M. Clapham/M. Clapham]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 185215: authorized by Matthew Clapham, entered by Matthew Clapham on 17.04.2017
Creative Commons license: CC BY (attribution)
Taxonomic list
| Globothalamea | |
|
Gyroidina planulata Cushman and Renz 1941 | |
| Foraminifera | |
|
Cyclammina clarki Hanna 1923
Cyclammina cf. incisa Stache 1864 | |
|
? Discammina eocenica Mllory 1959 | |
|
Cassidulina crassipunctata Cushman and Hobson 1935 | |
| Nodosariata | |
|
Plectofrondicularia miocenica Cushman 1926 | |
|
Robulus warmani Barbat and von Estorff 1933
Robulus propinquus Hantken 1873 | |
| Foraminifera | |
|
Virgulina bramlettei Galloway and Morrey 1929 | |
|
Marginulina cf. adunca Costa 1856 | |