Where: Santa Cruz County, California (37.2° N, 122.1° W: paleocoordinates 36.8° N, 110.1° W)
• coordinate estimated from map
• small collection-level geographic resolution
When: Butano Formation, Bartonian (41.3 - 38.0 Ma)
• Stratigraphically 15 feet above center of Butano anticline and 145 feet below top of Butano formation, at stream level, toward top of a 6-foot gray siltstone member.
• 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 185234: authorized by Matthew Clapham, entered by Matthew Clapham on 17.04.2017
Creative Commons license: CC BY (attribution)
Taxonomic list
Foraminifera | |
Bulimina ovata, "Bifarina eleganta" = Siphogenerinoides eleganta, Virgulina dibollensis, Virgulina bramlettei
Bulimina ovata d'Orbigny 1846
"Bifarina eleganta" = Siphogenerinoides eleganta Plummer 1926
Virgulina dibollensis Cushman and Applin 1926
Virgulina bramlettei Galloway and Morrey 1929 | |
Tubothalamea | |
Spiroloculina lamposa Hussey 1949 | |
Foraminifera | |
Sphaeroidina gredalensis, Pullenia quinqueloba, Pullenia eocenica, Chilostomella hadleyi, Chilostomelloides ovicula, Chilostomelloides oviformis
Sphaeroidina gredalensis Cook 1959
Pullenia eocenica Cushman and Siegfus 1939
Chilostomella hadleyi Keijzer 1945
Chilostomelloides ovicula Nuttall 1928
Chilostomelloides oviformis Sherborn and Chapman 1886 | |
Amphimorphina ignota Cushman and Siefgus 1939
Amphimorphina aff. ignota Cushman and Siefgus 1939
Rectoguembelina cf. trinitatensis Cushman and Renz 1948 | |
Globigerina ouachitaensis, Globigerina decepta, "Globigerina triloculinoides" = Subbotina triloculinoides
Globigerina ouachitaensis Howe and Wallace 1932
Globigerina decepta Martin 1943
"Globigerina triloculinoides" = Subbotina triloculinoides Plummer 1926 | |
| |
Ammobaculites cubensis Cushman and Bermudez 1937
Vulvulina curta Cushman and Siegfus 1935 | |
Haplophragmoides obliquicameratus Marks 1951 | |
Nodosariata | |
? Saracenaria cf. acutiauricularis Fichtel and Moll 1798
Lenticulina cf. convergens Bornemann 1855 | |
Dentalina spinosa, Dentalina jarvisi, Dentalina nasuta, Dentalina cf. legumen, Dentalina consobrina, Dentalina pauperata, Dentalina cooperensis, Nodosaria pyrula, Nodosaria longiscata, Lagena vulgaris, Planularia caribbeana, Frondicularia tenuissima, Robulus sp., Robulus insuetus, Robulus inornatus, Robulus clericii, Robulus cf. clypeiformis, Robulus kincaidi, Robulus cf. terryi, Robulus alatolimbatus
Dentalina spinosa d'Orbigny 1846
Dentalina jarvisi Cushman and Todd 1945
Dentalina nasuta Cushman 1939
Dentalina cf. legumen Reuss 1845
Dentalina consobrina d'Orbigny 1846
Dentalina pauperata d'Orbigny 1846
Dentalina cooperensis Cushman 1935
Nodosaria pyrula d'Orbigny 1826
Nodosaria longiscata d'Orbigny 1846
Lagena vulgaris Williamson 1848
Planularia caribbeana Bermudez 1949
Frondicularia tenuissima Hantken 1875
Robulus sp. Montfort 1808
Robulus insuetus Cushman and Stainforth 1947
Robulus inornatus d'Orbigny 1846
Robulus cf. clypeiformis d'Orbigny 1846
Robulus kincaidi Beck 1943
Robulus cf. terryi Coryell and Embich 1937
Robulus alatolimbatus Guembel 1868 | |
Epistomina eocenica Cushman and Hanna 1927 | |
Plectofrondicularia trinitatensis Cushman and Jarvis 1929
Plectofrondicularia cf. vaughani Cushman 1927
Plectofrondicularia kerni Cook 1959 | |
Ellipsonodosaria "sp. A", Ellipsonodosaria atlantisae, Ellipsonodosaria spinulosa, Ellipsonodosaria cf. alexanderi
Ellipsonodosaria "sp. A" Silvestri 1900
Ellipsonodosaria atlantisae Cushman 1939
Ellipsonodosaria spinulosa Costa 1855
Ellipsonodosaria cf. alexanderi Cushman 1936 | |
Globothalamea | |
| |
Anomalina garzaensis Cushman and Siegfus 1939
Anomalinoides cf. globosa Brotzen 1945 | |
Cibicides cushmani Nuttall 1930 | |
Eponides umbonatus Reuss 1851 | |
Foraminifera | |
Hantkenina alabamensis Cushman 1927 | |
Pseudoglandulina ovata Cushman and Applin 1926
Marginulina munda Cushman 1938 | |
Spiroplectammina eocenica Cushman and Barksdle 1930 | |
Asterigerina crassaformis Cushman and Siegfus 1935 | |
Uvigerina garzaensis Cushman and Siegfus 1939 | |
Rhabdammina eocenica Cushman and Hanna 1927 | |
Bathysiphon eocenica Cushman and Hanna 1927 | |
Trochammina albertensis Wickenden 1932 | |
Plectina garzaensis Cushman and Siegfus 1935 | |
Martinottiella eocenica Cushman and Bermudez 1947
Karreriella mediaaquaensis Mallory 1959 |