Where: Crook County, Oregon (44.0° N, 119.7° W: paleocoordinates 18.6° N, 38.5° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Leonard to Leonard (290.1 - 259.0 Ma)

• 7 samples, Pseudoalbaillella globosa zone, Upper Leonardian-Lower Guadalupian

• bed-level stratigraphic resolution

Environment/lithology: slope; lithified chert

Size class: microfossils

Primary reference: C. D. Blome and K. M. Reed. 1992. Permian and Early(?) Triassic radiolarian faunas from the Grindstone Terrane, central Oregon. Journal of Paleontology 66(3):351-383 [W. Kiessling/U. Merkel/U. Merkel] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 95629: authorized by Wolfgang Kiessling, entered by Uta Merkel on 20.04.2010