PBDB Collection

OR-148 Morgan Mountain, Izee (Triassic of the United States)

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)

• 65.2 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 95131: 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
Spumellaria - Capnuchosphaeridae	Sarla sp., Sarla plena, Sarla aff. vetusta, Catoma inedita, Catoma concinna, Catoma geometrica, Capnuchosphaera sp., Capnuchosphaera smithorum, Capnuchosphaera colemani, Capnuchosphaera deweveri, Capnuchosphaera schenki Sarla sp. Pessagno et al. 1979 radiolarian Sarla plena Blome 1983 radiolarian Sarla aff. vetusta Pessagno et al. 1979 radiolarian Catoma inedita Blome 1983 radiolarian Catoma concinna Blome 1983 radiolarian Catoma geometrica Blome 1983 radiolarian Capnuchosphaera sp. De Wever 1979 radiolarian Capnuchosphaera smithorum Blome 1983 radiolarian Capnuchosphaera colemani Blome 1983 radiolarian Capnuchosphaera deweveri Kozur and Mostler 1979 radiolarian Capnuchosphaera schenki Blome 1983 radiolarian
Spumellaria - Hexaporobrachiidae	Icrioma sp., Icrioma transversa, Icrioma praecipua Icrioma sp. De Wever 1979 radiolarian Icrioma transversa Blome 1983 radiolarian Icrioma praecipua Blome 1983 radiolarian
Spumellaria - Pantanelliidae	Loffa sp., Loffa vesterensis, Capnodoce sp., Capnodoce angusta, Capnodoce media, Capnodoce aff. anapetes, Capnodoce insueta, Capnodoce copiosa, Capnodoce malaca, Capnodoce baldiensis, Capnodoce antiqua, Capnodoce beaulieui, Capnodoce kochi, Capnodoce minuscula, Capnodoce traversi, Capnodoce sinuosa, Renzium sp., Renzium adversum Loffa sp. Pessagno et al. 1979 radiolarian Loffa vesterensis Blome 1983 radiolarian Capnodoce sp. De Wever 1979 radiolarian Capnodoce angusta Blome 1983 radiolarian Capnodoce media Blome 1983 radiolarian Capnodoce aff. anapetes De Wever 1979 radiolarian Capnodoce insueta Blome 1983 radiolarian Capnodoce copiosa Blome 1983 radiolarian Capnodoce malaca Blome 1983 radiolarian Capnodoce baldiensis Blome 1983 radiolarian Capnodoce antiqua Blome 1983 radiolarian Capnodoce beaulieui Blome 1983 radiolarian Capnodoce kochi Blome 1983 radiolarian Capnodoce minuscula Blome 1983 radiolarian Capnodoce traversi Pessagno et al. 1979 radiolarian Capnodoce sinuosa Blome 1983 radiolarian Renzium sp. Blome 1983 radiolarian Renzium adversum Blome 1983 radiolarian