Where: Montana (45.7° N, 106.4° W)
• Paleocoordinates: 55.3° N, 69.1° W (Wright 2013)
• coordinate estimated from map
When: Tullock Formation, Early/Lower Paleocene (66.0 - 61.7 Ma)
• in sandstone above Rosebud coal
Environment/lithology: fluvial; coal
Size classes: mesofossils, microfossils
Reposited in the USNM
Collection methods: quarrying, mechanical,
• Specimens were collected by Bass on Aug. 24, 1923
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 53530: authorized by Peter Wilf, entered by Jocelyn Sessa on 11.09.2005
Creative Commons license: CC0 (CC0)
Taxonomic list
Angiospermae | |
Celtis peracuminata hackberry | |