Also known as USGS locality 337, USGS locality 338, USGS locality 8787
Where: Grand County, Colorado (40.1° N, 106.1° W: paleocoordinates 45.9° N, 85.9° W)
• coordinate based on political unit
When: Middle Park Formation, Paleocene (66.0 - 56.0 Ma)
• 'The outcrop is on the southern face of the mountain 25 feet above a conglomerate, which forms a prominent bench at about 1000 feet above the base of the mountain.' From USGS unpublished log book.
• group of beds-level stratigraphic resolution
Environment/lithology: fluvial; sandy conglomerate and shale
Reposited in the USNM
Collection methods: quarrying, mechanical,
• Specimens were collected by geologist L. Cannon, in the summer of Summer 1889.
Primary reference: R. W. Brown. 1962. Paleocene flora of the Rocky Mountains and Great Plains. United States Geological Survey Professional Paper 375:1-119 [P. Wilf/J. Sessa/M. Uhen]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 40061: authorized by Peter Wilf, entered by Jocelyn Sessa on 16.06.2004
Creative Commons license: CC BY (attribution)
Taxonomic list
Polypodiopsida | |
Anemia elongata Newberry 1863 | |
Angiospermae | |
Leguminosites coloradensis Knowlton 1922 | |
Ampelopsis acerifolia Newberry 1868
Vitis olriki Heer 1868 grapevine | |
Ficus artocarpoides Lesquereux 1883 fig | |
Cornus hyperborea Heer 1871 dogwood | |
Fraxinus eocenica Lesquereux 1878 ash | |
Hydrangea antica hydrangea | |
Cercidiphyllum arcticum katsura | |
Platanus raynoldsi Newberry 1868 plane tree
Platanus nobilis Newberry 1868 plane tree | |
Persea brossiana Lesquereux 1878 laurel | |
Glyptostrobus nordenskioldi Chinese swamp cypress |