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