Where: California (41.9° N, 123.8° W: paleocoordinates 34.2° N, 65.2° W)

• coordinate estimated from map

• hand sample-level geographic resolution

When: Volcanopelagic Succession Member (Josephine Formation), Early/Lower Bathonian (167.7 - 164.7 Ma)

• Zone 2 delta. 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 51649: authorized by Wolfgang Kiessling, entered by Wolfgang Kiessling on 09.06.2005

Creative Commons license: CC BY (attribution)