ammonites
Suplee-Izee area, OR-600A (Jurassic of the United States)

Where: Oregon (44.1° N, 119.4° W: paleocoordinates 30.2° N, 55.7° W)

• coordinate estimated from map

• hand sample-level geographic resolution

When: Hyde Formation, Early/Lower Toarcian (183.0 - 182.0 Ma)

Environment/lithology: marine; lithified, massive, gray, blue tuff and lithified limestone

• micritic limestone samples in thick massive beds of blue-gray andesitic tuffs and tuffaceous graywacke

Size class: microfossils

Preservation: original silica

Primary reference: K. Y. Yeh. 1987. Taxonomic Studies of Lower Jurassic Radiolaria from East-Central Oregon. National Museum of Natural Science Special Publications 2:1-169 [J. Pálfy/A. Kocsis/A. Kocsis] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 124328: authorized by József Pálfy, entered by Adam Kocsis on 12.02.2012