Where: Oregon (44.1° N, 119.5° W: paleocoordinates 37.0° N, 62.3° W)

• coordinate estimated from map

• hand sample-level geographic resolution

When: Lonesome Formation, Middle Callovian (164.7 - 161.2 Ma)

• bed-level stratigraphic resolution

Environment/lithology: basinal (); lithified lime mudstone and lithified mudstone

Size class: microfossils

Preservation: original silica

Collection methods: bulk, chemical, hydrochloric,

• Intervals for abundance data: Rare, 1-2 specimens; Common, 3-6 specimens; Abundant, > 6 specimens

Primary reference: C. D. Blome. 1984. Middle Jurassic (Callovian) radiolarians from carbonate concretions, Alaska and Oregon. Micropaleontology 30(4):343-389 [W. Kiessling/W. Kiessling/W. Kiessling] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 50709: authorized by Wolfgang Kiessling, entered by Wolfgang Kiessling on 19.05.2005, edited by Adam Kocsis