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 | |
Asterigerina crassaformis Cushman and Siegfus 1935 | |
Uvigerina garzaensis Cushman and Siegfus 1939 | |
Marginulina munda Cushman 1938 | |
Hantkenina alabamensis Cushman 1927 | |
Sphaeroidina gredalensis, Pullenia eocenica, Pullenia quinqueloba, Chilostomella hadleyi, Chilostomelloides oviformis, Chilostomelloides ovicula
Sphaeroidina gredalensis Cook 1959
Pullenia eocenica Cushman and Siegfus 1939
Chilostomella hadleyi Keijzer 1945
Chilostomelloides oviformis Sherborn and Chapman 1886
Chilostomelloides ovicula Nuttall 1928 | |
Pseudoglandulina ovata Cushman and Applin 1926 | |
Karreriella mediaaquaensis Mallory 1959
Martinottiella eocenica Cushman and Bermudez 1947 | |
Rhabdammina eocenica Cushman and Hanna 1927 | |
Bathysiphon eocenica Cushman and Hanna 1927 | |
Plectina garzaensis Cushman and Siegfus 1935 | |
Trochammina albertensis Wickenden 1932 | |
Amphimorphina ignota Cushman and Siefgus 1939
Amphimorphina aff. ignota Cushman and Siefgus 1939
Rectoguembelina cf. trinitatensis Cushman and Renz 1948 | |
Globothalamea | |
Cibicides cushmani Nuttall 1930 | |
| |
Anomalina garzaensis Cushman and Siegfus 1939
Anomalinoides cf. globosa Brotzen 1945 | |
Eponides umbonatus Reuss 1851 | |
Tubothalamea | |
Spiroloculina lamposa Hussey 1949 | |
Foraminifera | |
Bulimina ovata, "Bifarina eleganta" = Siphogenerinoides eleganta, Virgulina bramlettei, Virgulina dibollensis
Bulimina ovata d'Orbigny 1846
"Bifarina eleganta" = Siphogenerinoides eleganta Plummer 1926
Virgulina bramlettei Galloway and Morrey 1929
Virgulina dibollensis Cushman and Applin 1926 | |
"Globigerina triloculinoides" = Subbotina triloculinoides, Globigerina decepta, Globigerina ouachitaensis
"Globigerina triloculinoides" = Subbotina triloculinoides Plummer 1926
Globigerina decepta Martin 1943
Globigerina ouachitaensis Howe and Wallace 1932 | |
| |
Nodosariata | |
Robulus sp., Robulus inornatus, Robulus clericii, Robulus kincaidi, Robulus alatolimbatus, Robulus insuetus, Robulus cf. clypeiformis, Robulus cf. terryi, Dentalina pauperata, Dentalina cf. legumen, Dentalina spinosa, Dentalina jarvisi, Dentalina nasuta, Dentalina consobrina, Dentalina cooperensis, Nodosaria longiscata, Nodosaria pyrula, Lagena vulgaris, Planularia caribbeana, Frondicularia tenuissima
Robulus sp. Montfort 1808
Robulus inornatus d'Orbigny 1846
Robulus kincaidi Beck 1943
Robulus alatolimbatus Guembel 1868
Robulus insuetus Cushman and Stainforth 1947
Robulus cf. clypeiformis d'Orbigny 1846
Robulus cf. terryi Coryell and Embich 1937
Dentalina pauperata d'Orbigny 1846
Dentalina cf. legumen Reuss 1845
Dentalina spinosa d'Orbigny 1846
Dentalina jarvisi Cushman and Todd 1945
Dentalina nasuta Cushman 1939
Dentalina consobrina d'Orbigny 1846
Dentalina cooperensis Cushman 1935
Nodosaria longiscata d'Orbigny 1846
Nodosaria pyrula d'Orbigny 1826
Lagena vulgaris Williamson 1848
Planularia caribbeana Bermudez 1949
Frondicularia tenuissima Hantken 1875 | |
Epistomina eocenica Cushman and Hanna 1927 | |
Ellipsonodosaria "sp. A", Ellipsonodosaria atlantisae, Ellipsonodosaria cf. alexanderi, Ellipsonodosaria spinulosa
Ellipsonodosaria "sp. A" Silvestri 1900
Ellipsonodosaria atlantisae Cushman 1939
Ellipsonodosaria cf. alexanderi Cushman 1936
Ellipsonodosaria spinulosa Costa 1855 | |
Plectofrondicularia kerni Cook 1959
Plectofrondicularia cf. vaughani Cushman 1927
Plectofrondicularia trinitatensis Cushman and Jarvis 1929 | |
? Saracenaria cf. acutiauricularis Fichtel and Moll 1798
Lenticulina cf. convergens Bornemann 1855 | |
Foraminifera | |
Ammobaculites cubensis Cushman and Bermudez 1937
Vulvulina curta Cushman and Siegfus 1935 | |
Haplophragmoides obliquicameratus Marks 1951 | |
Spiroplectammina eocenica Cushman and Barksdle 1930 |