Izee terrane, OR-530 (Jurassic of the United States)

Where: Oregon (44.0° N, 119.0° W: paleocoordinates 36.8° N, 61.9° W)

• coordinate estimated from map

• small collection-level geographic resolution

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

• bed-level stratigraphic resolution

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

• Interbedded graywacke and dark-gray siliceous mudstone bearing small, dark-gray micritic limestone nodules

Size class: microfossils

Primary reference: E. Pessagno, W. M. Six, and Q. Yang. 1989. The Xiphostylidae Haeckel and Parvivaccidae, n. fam, (Radiolaria) from the North American Jurassic. Micropaleontology 35(3):193-255 [J. Pálfy/A. Kocsis]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 127231: authorized by József Pálfy, entered by Adam Kocsis on 04.05.2012

Creative Commons license: CC BY (attribution)

Taxonomic list

• Abundance data given as rare (1-2 specimens); common (3-6 specimens); abundant (6+ specimens). Data entered using conservative values of 1, 3, and 6 for rare, common and abundant, respectively.
Show authors, comments, and common names
Protozoa
 Actinommacea - Xiphostylidae
Archaeocenosphaera spp.
Archaeocenosphaera spp. Pessagno et al. 1989 radiolarian