Cove Creek (Oligocene of the United States)

Also known as Bridge Creek Flora

Where: Wheeler County, Oregon (45.0° N, 120.3° W: paleocoordinates 44.6° N, 109.5° W)

• coordinate stated in text

When: John Day Formation, Early/Lower Oligocene (33.9 - 28.4 Ma)

• formation-level stratigraphic resolution

Environment/lithology: fluvial-lacustrine

• tuffaceous shale

Size class: mesofossils

Preservation: mold/impression, original carbon

Collection methods: bulk,

• The dominant leaves at Cove Creek are Alnus and Paracarpinus. Most noteworthy in the Cove Creek assemblage is the abundance of Pinus johndayensis, which is much more common here than in any other assemblage.

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 35235: authorized by Bruce Tiffney, entered by Julia Fosdick on 19.11.2003

Creative Commons license: CC BY (attribution)

Taxonomic list

 Pinales - Pinaceae
 Pinales - Taxodiaceae
Metasequoia sp. Miki 1941 dawn redwood
 Urticales - Dilleniidae
 Juglandales - Hamamelidae
Carya sp. A Nuttall 1818 hickory
 Saxifragales - Cercidiphyllaceae
 Fabales - Leguminosae
 Malvales - Tiliaceae
 Rosales - Rosaceae
 Sapindales - Aceraceae
Acer sp. 1 Linnaeus 1753 maple
Acer sp. A Linnaeus 1753 maple
Acer sp. C Linnaeus 1753 maple
 Sapindales - Meliaceae
 Cornales - Cornaceae
Cornus sp. Linnaeus 1753 dogwood
 Fagales - Betulaceae
Alnus sp. Miller 1768 alder
 Ranunculales - Berberidaceae
Florissantia speirii Manchester 1992
Parrotia brevipetiolata Meyer and Manchester 1997