Where: California (41.9° N, 123.8° W: paleocoordinates 32.8° N, 63.6° W)
• coordinate estimated from map
• hand sample-level geographic resolution
When: Volcanopelagic Succession Member (Josephine Formation), Late/Upper Bajocian (171.6 - 167.7 Ma)
• Zone 1I. Age re-assigned based on Baumgartner et al. (1995).
•Informal Formation name. Stated as Volcanic member, Josephine Ophiolite
• bed-level stratigraphic resolution
Environment/lithology: basinal (siliceous); lithified lime mudstone and lithified chert
Size class: microfossils
Preservation: original silica
Collection methods: chemical, hydrochloric,
Primary reference: E. A. Pessagno, Jr., C. D. Blome, D. M. Hull and W. M. Six. 1993. Jurassic radiolaria from the Josephine ophiolite and overlying strata, Smith River subterrane (Klamath Mountains), northwestern California and southwestern Oreg. Micropaleontology 39:93-166 [W. Kiessling/W. Kiessling/J. Alroy]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 51641: authorized by Wolfgang Kiessling, entered by Wolfgang Kiessling on 09.06.2005
Creative Commons license: CC BY (attribution)
Taxonomic list
Protozoa | |
Bernoullius brokenkettlensis radiolarian
Bernoullius sp. Baumgartner 1984 radiolarian | |
Archaeospongoprunum sp. Pessagno 1973 radiolarian | |
"Pachyconus kamiasoensis" = Pachyoncus radiolarian
Pantanellium sp. Pessagno 1977 radiolarian
Pantanellium foveatum Mizutani and Kido 1983 radiolarian | |
Xiphostylus sp. Haeckel 1881 radiolarian
Tripocyclia sp. Haeckel 1881 radiolarian | |
Eucyrtidiellum sp., "Eucyrtidiellum aff. pustulatum" = Eucyrtidiellum unumaense
Eucyrtidiellum sp. Baumgartner 1984 radiolarian
"Eucyrtidiellum aff. pustulatum" = Eucyrtidiellum unumaense Yao 1979 radiolarian | |
Ristola sp., "Praecaneta sp." = Praeparvicingula
Ristola sp. Pessagno and Whalen 1982 radiolarian
"Praecaneta sp." = Praeparvicingula Pessagno et al. 1993 radiolarian | |
Semihsuum sp. Pessagno et al. 1993 radiolarian
Hsuum sp. Pessagno 1977 radiolarian |