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), Late/Upper Tithonian (150.8 - 145.0 Ma)
• Zone 4 alpha - revision of chronostratigraphic assignment based on Baumgarnter et al. (1995) and Kiessling et al. (1999)
• bed-level stratigraphic resolution
Environment/lithology: basinal (siliceous); lithified limestone
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 50746: authorized by Wolfgang Kiessling, entered by Wolfgang Kiessling on 20.05.2005
Creative Commons license: CC BY (attribution)
Taxonomic list
Protozoa | |
Napora lomoalta radiolarian | |
Triversus sp. Takemura 1986 radiolarian | |
Praeparvicingula aff. packsaddlensis, Praeparvicingula saltata, ? Praeparvicingula nebulosa, Praeparvicingula gemmata, Parvicingula broqueta, Parvicingula cf. khabakovi, Parvicingula obstinata, Parvicingula aff. obstinata, Parvicingula whalenae, Parvicingula turrita, "Parvicingula jonesi" = Parvicingula jonesi, "Parvicingula corralensis" = Parvicingula jonesi, Parvicingula gracila, Parvicingula bluefordae, Parvicingula corona, Parvicingula cf. corona, "Praeparvicingula aff. excelsa" = Parvicingula excelsa, Parvicingula blowi, Caneta hsui
Praeparvicingula aff. packsaddlensis radiolarian
Praeparvicingula saltata radiolarian
? Praeparvicingula nebulosa Hull 1995 radiolarian
Praeparvicingula gemmata Hull 1995 radiolarian
Parvicingula broqueta radiolarian
Parvicingula cf. khabakovi radiolarian
Parvicingula obstinata radiolarian
Parvicingula aff. obstinata radiolarian
Parvicingula whalenae radiolarian
Parvicingula turrita RĂ¼st 1898 radiolarian
"Parvicingula jonesi" = Parvicingula jonesi Pessagno 1977 radiolarian
"Parvicingula corralensis" = Parvicingula jonesi Pessagno 1977 radiolarian
Parvicingula gracila Hull 1995 radiolarian
Parvicingula bluefordae Hull 1995 radiolarian
Parvicingula corona Hull 1995 radiolarian
Parvicingula cf. corona Hull 1995 radiolarian
"Praeparvicingula aff. excelsa" = Parvicingula excelsa Pessagno and Blome 1984 radiolarian
Parvicingula blowi Pessagno 1977 radiolarian
Caneta hsui Pessagno 1977 radiolarian | |
Hsuum naturale radiolarian | |
Zhamoidellum parva radiolarian
Hiscocapsa acuta radiolarian | |
"Minocapsa horokanaiensis" = Tetracapsa horokanaiensis
"Minocapsa horokanaiensis" = Tetracapsa horokanaiensis Kawabata 1988 radiolarian | |
Archaeocenosphaera sp. Pessagno et al. 1989 radiolarian
Tripocyclia foremanae Pessagno et al. 1989 radiolarian
Suna ehrenbergi radiolarian | |
| |
Parasaturnalidae indet. Kozur and Mostler 1972 radiolarian | |
Angulobracchia purisimaensis, Paronaella nipomoensis, Paronaella egregia, Paronaella coalescenda, "Fluegelium inornata" = Paronaella inornata
Angulobracchia purisimaensis Pessagno 1977 radiolarian
Paronaella nipomoensis radiolarian
Paronaella egregia radiolarian
Paronaella coalescenda Kiessling 1999 radiolarian
"Fluegelium inornata" = Paronaella inornata Hull 1997 radiolarian | |
Homoeoparonaella glinesi radiolarian
Homoeoparonaella scurrae radiolarian
Patulibracchium sp. Pessagno 1971 radiolarian | |
Orbiculiforma sp., "Orbiculiforma teres" = Orbiculiformella teres
Orbiculiforma sp. Pessagno 1973 radiolarian
"Orbiculiforma teres" = Orbiculiformella teres Hull 1997 radiolarian | |
Tritrabs exotica Pessagno 1977 radiolarian
Tritrabs casmaliaensis Pessagno 1977 radiolarian | |
Parvivacca marina, Parvivacca varica, Nolita ramosa, Acusten ordinarius, Acastea dura, Acastea incontraria
Parvivacca marina radiolarian
Parvivacca varica radiolarian
Nolita ramosa radiolarian
Acusten ordinarius radiolarian
Acastea dura radiolarian
Acastea incontraria radiolarian | |
Crucella theokaftensis Baumgartner 1980 radiolarian
Crucella aff. messinae Pessagno 1971 radiolarian |