Where: California (42.0° N, 123.8° W: paleocoordinates 33.0° N, 63.5° W)

• coordinate estimated from map

• hand sample-level geographic resolution

When: Volcanic Member (Josephine Formation), Bajocian (171.6 - 167.7 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