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: Vaqueros Formation, Oligocene (33.9 - 23.0 Ma)
• Stratigraphically 160 feet above base of Vaqueros formation, 6 feet above road and behind telegraph pole, in prominent 1-foot, dark gray, massive siltstone bed.
• 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 185214: authorized by Matthew Clapham, entered by Matthew Clapham on 16.04.2017
Creative Commons license: CC BY (attribution)
Taxonomic list
| Foraminifera | |
|
Hopkinsina compressa Cushman 1925 | |
| Globothalamea | |
|
Eponides keenani Cushman and Kleinpell 1934 | |
|
Gyroidina orbicularis d'Orbigny 1865
Gyroidina condoni Cushman and Schenck 1928 | |
|
Anomalina californiensis Cushman and Hobson 1935 | |
|
Cibicidoides cf. midwayensis Plummer 1927 | |
| Foraminifera | |
|
Angulogerina sp. Cushman 1927
Bulimina cf. socialis Bornemann 1855
Bulimina rinconensis Cushman and Laiming 1931
Buliminella subfusiformis Cushman 1925 | |
|
Bathysiphon sanctaecrucis Cushman and Kleinpell 1934 | |
| Nodosariata | |
|
Ellipsonodosaria recta Palmer and Bermudez 1936 | |
|
Frondicularia tenuissima Hantken 1875
Dentalina sp. d'Orbigny 1826
Dentalina quadrulata Cushman and Laiming 1931 | |
|
Darbyella sp. Howe and Wallace 1932 | |
| Foraminifera | |
|
Dorothia californica Cushman and Kleinpell 1934
Cyclammina clarki Hanna 1923 | |
|
Haplophragmoides obliquicameratus Marks 1951 | |