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