Where: Grant County, Oregon (44.1° N, 119.4° W: paleocoordinates 19.1° N, 55.3° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Rail Cabin Argillite Formation, Norian (221.5 - 205.6 Ma)

• 81.4 m above contact, (Late Carnian?)Early to late Middle Norian

• bed-level stratigraphic resolution

Environment/lithology: basinal (siliceous); lithified, cherty/siliceous mudstone

Size class: microfossils

Primary reference: C. D. Blome. 1983. Upper Triassic Capnuchosphaeridae and Capnodocinae (Radiolaria) from east-central Oregon. Micropaleontology 29(1):11-49 [W. Kiessling/U. Merkel] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 95120: authorized by Wolfgang Kiessling, entered by Uta Merkel on 07.04.2010