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