Where: California (42.0° N, 123.8° W: paleocoordinates 33.3° N, 63.9° W)
• coordinate estimated from map
• hand sample-level geographic resolution
When: Volcanic Member (Josephine Formation), Bajocian (170.3 - 168.3 Ma)
• Zone 1H. 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, tuffaceous chert
Size class: microfossils
Preservation: original silica
Collection methods: chemical, hydroflouric,
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 51635: authorized by Wolfgang Kiessling, entered by Wolfgang Kiessling on 09.06.2005
Creative Commons license: CC BY (attribution)
Taxonomic list
Protozoa | |
Ristola sp. Pessagno and Whalen 1982 radiolarian
"Praecaneta sp." = Praeparvicingula Pessagno et al. 1993 radiolarian
"Praecaneta decora" = Praeparvicingula decora Pessagno and Whalen 1982 radiolarian | |
Spongocapsula sp. Pessagno 1977 radiolarian | |
? Tricolocapsa sp., "Quarkus madstonensis" = Williriedellum madstonense
? Tricolocapsa sp. Haeckel 1881 radiolarian
"Quarkus madstonensis" = Williriedellum madstonense Pessagno et al. 1993 radiolarian | |
Napora sp. Pessagno 1977 radiolarian | |
Hsuum baldfacense radiolarian
Hsuum sp. Pessagno 1977 radiolarian
Semihsuum sp. Pessagno et al. 1993 radiolarian | |
Stichocapsa aff. convexa Yao 1979 radiolarian |