USGS locality 8910, West side of Bayhorse Creek, 1.5 miles north of Traub Ranch (Paleocene of the United States)

Where: Montana (45.2° N, 105.7° W: paleocoordinates 50.8° N, 83.7° W)

• coordinate estimated from map

When: Fort Union Formation, Paleocene (66.0 - 56.0 Ma)

• Although not stated, this collection likely comes from the Fort Union Fm

Environment/lithology: fluvial; siliciclastic sediments

Reposited in the USNM

Collection methods: quarrying, mechanical,

• Collected by R.W. Brown and M.W. Ellis; and R.P. Bryson on July 14, 1941; July 15, 1941

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 53959: authorized by Peter Wilf, entered by Jocelyn Sessa on 19.09.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

• Species lists for Brown 1962 were compiled from the publication and provided for the Paleobiology Database by Drs. Steven R. Manchester and Peter R. Crane.
Show authors, comments, and common names
Angiospermae
 Trochodendrales - Trochodendraceae
Nordenskioldia borealis
 Icacinales - Icacinaceae
Palaeophytocrene sp.
Palaeophytocrene sp. Reid and Chandler 1933 white pear
 Saxifragales - Cercidiphyllaceae
Cercidiphyllum arcticum
 Rosids - Moraceae
Ficus artocarpoides
Ficus artocarpoides Lesquereux 1883 fig
 Sapindales - Sapindaceae
Acer sp.
Acer sp. Linnaeus 1753 maple
winged fruit
 Rosales - Ulmaceae
Ulmus rhamnifolia
Ulmus rhamnifolia Ward 1885 elm
 Fagales - Juglandaceae
Pterocarya hispida, Juglandicarya sp.
Pterocarya hispida Brown 1962 wingnut
Juglandicarya sp. Reid and Chandler 1933
fruit
Magnoliopsida
  -
"Acer newberryi" = Dicotylophyllum trilobum
"Acer newberryi" = Dicotylophyllum trilobum Newberry 1868
Beringiaphyllum cupanioides
  -
Beringiaphyllum cupanioides
Beringiaphyllum cupanioides Manchester et al. 1999