Where: California (35.1° N, 120.2° W: paleocoordinates 30.5° N, 65.5° W)
• coordinate based on nearby landmark
• hand sample-level geographic resolution
When: Unit 2 Formation (Volcanopelagic Succession Group), Early/Lower Tithonian (150.8 - 145.0 Ma)
• Zone 4 beta - revision of chronostratigraphic assignment based on Baumgarnter et al. (1995) and Kiessling et al. (1999)
• bed-level stratigraphic resolution
Environment/lithology: basinal (siliceous); lithified, cherty/siliceous mudstone
Size class: microfossils
Preservation: original silica
Collection methods: bulk, hydrochloric,
• Radiolarians only
Primary reference: D. M. Hull. 1997. Upper Jurassic Tethyan and Southern Boreal radiolarians from western North America. Micropaleontology 43(S2):1-202 [W. Kiessling/W. Kiessling/M. Uhen]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 50750: authorized by Wolfgang Kiessling, entered by Wolfgang Kiessling on 20.05.2005
Creative Commons license: CC BY (attribution)
Taxonomic list
Protozoa | |
Orbiculiforma sp. Pessagno 1973 radiolarian | |
Suna ehrenbergi radiolarian | |
Parvicingula aff. obstinata, Parvicingula whalenae, Parvicingula turrita, "Parvicingula corralensis" = Parvicingula jonesi, Parvicingula blowi, Parvicingula aff. gorda, "Praeparvicingula excelsa" = Parvicingula excelsa, Mirifusus baileyi, Praeparvicingula sencilla, Praeparvicingula rotunda, Caneta hsui
Parvicingula aff. obstinata radiolarian
Parvicingula whalenae radiolarian
Parvicingula turrita RĂ¼st 1898 radiolarian
"Parvicingula corralensis" = Parvicingula jonesi Pessagno 1977 radiolarian
Parvicingula blowi Pessagno 1977 radiolarian
Parvicingula aff. gorda Hull 1995 radiolarian
"Praeparvicingula excelsa" = Parvicingula excelsa Pessagno and Blome 1984 radiolarian
Mirifusus baileyi Pessagno 1977 radiolarian
Praeparvicingula sencilla radiolarian
Praeparvicingula rotunda Hull 1995 radiolarian
Caneta hsui Pessagno 1977 radiolarian | |
Novixitus jurassicus radiolarian | |
"Minocapsa horokanaiensis" = Tetracapsa horokanaiensis
"Minocapsa horokanaiensis" = Tetracapsa horokanaiensis Kawabata 1988 radiolarian | |
"Zhamoidellum parva" = Zhamoidellum, "Complexapora kozuri" = Zhamoidellum, "Complexapora kiesslingi" = Zhamoidellum
"Zhamoidellum parva" = Zhamoidellum radiolarian
"Complexapora kozuri" = Zhamoidellum radiolarian
"Complexapora kiesslingi" = Zhamoidellum radiolarian | |
Hsuum santamariaense radiolarian
Hsuum mclaughlini Pessagno and Blome 1984 radiolarian | |
? Mita sp. Pessagno 1977 radiolarian |