Izee terrane, OR-550A (Jurassic of the United States)

Where: Oregon (44.0° N, 119.0° W: paleocoordinates 34.4° N, 59.0° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Snowshoe Formation, Late/Upper Bajocian (171.6 - 167.7 Ma)

• bed-level stratigraphic resolution

Environment/lithology: marine; lithified, tuffaceous, gray sandstone

• predominantly dark gray tuffaceous sandstone with minor dark gray mudstone and tuffaceous limestone. samples from dark gray tuffaceous limestone layers

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 127230: 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., Xiphostylus sinuosus, Xiphostylus spp.
Archaeocenosphaera spp. Pessagno et al. 1989 radiolarian
Xiphostylus spp. Haeckel 1881 radiolarian