Also known as Bridge Creek Flora

Where: Wheeler County, Oregon (44.9° N, 120.4° W: paleocoordinates 44.6° N, 109.6° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Early/Lower Oligocene (33.9 - 28.4 Ma)

• formation-level stratigraphic resolution

Environment/lithology: terrestrial

Size class: mesofossils

Preservation: mold/impression, original carbon

Collection methods: bulk,

• The most common taxa in the Iron Mountain assemblage are Metasequoia, Alnus, and Asterocarpinus/Paracarpinus, followed by Acer, and Cercidiphyllum. Pinus, Quercus, and Ulmus are very rare.

Primary reference: H. W. Meyer and S. R. Manchester. 1997. The Oligocene Bridge Creek flora of the John Day Formation, Oregon. University of California Publications in Geological Sciences 141:1-195 [J. Alroy/J. Alroy/H. Wang]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 35236: authorized by Bruce Tiffney, entered by Julia Fosdick on 19.11.2003

Creative Commons license: CC BY (attribution)