Where: Grant County, Oregon (44.1° N, 119.4° W: paleocoordinates 18.8° N, 55.2° W)
• coordinate based on nearby landmark
• small collection-level geographic resolution
When: Rail Cabin Argillite Formation, Norian (228.0 - 208.5 Ma)
• 97 m above contact, (Late Carnian?)Early to late Middle Norian
• bed-level stratigraphic resolution
Environment/lithology: basinal (siliceous); lithified, cherty/siliceous mudstone
• black 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 95136: authorized by Wolfgang Kiessling, entered by Uta Merkel on 07.04.2010
Creative Commons license: CC BY (attribution)
Taxonomic list
• abundance data: rare: 1-2 specimens, common: 3-6 specimens, abundant: >6 specimens
Show authors, comments, and common names
| Protozoa |
| Entactinaria - Hindeosphaeridae |
|
| Spumellaria - Capnuchosphaeridae |
Sarla sp., Sarla delicata, Sarla externa, Catoma sp., Catoma inedita, Catoma concinna, Catoma geometrica, Capnuchosphaera sp., Capnuchosphaera silviesensis, Capnuchosphaera smithorum, Capnuchosphaera colemani, Capnuchosphaera soldierensis, Capnuchosphaera deweveri, Capnuchosphaera sockensis, Capnuchosphaera schenki
|
| Spumellaria - Hexaporobrachiidae |
|
| Spumellaria - Pantanelliidae |
Loffa sp., Loffa lepida, Loffa vesterensis, Capnodoce sp., Capnodoce angusta, Capnodoce aff. anapetes, Capnodoce insueta, Capnodoce copiosa, Capnodoce malaca, Capnodoce extenta, Capnodoce baldiensis, Capnodoce fragilis, Capnodoce antiqua, Capnodoce beaulieui, Capnodoce kochi, Capnodoce minuscula, Capnodoce traversi, Capnodoce sinuosa, Renzium sp., Renzium adversum
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