Where: Big Horn County, Wyoming (44.6° N, 108.0° W: paleocoordinates 51.7° N, 82.5° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Lance Formation, Late/Upper Maastrichtian (70.6 - 66.0 Ma)

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported

Size class: macrofossils

Preservation: mold/impression

Collected by C. H. Sternberg in 1908; reposited in the USNM

Collection methods: surface (float), mechanical,

Primary reference: R. S. Lull and N. E. Wright. 1942. Hadrosaurian dinosaurs of North America. Geological Society of America Special Paper 40:1-242 [M. Carrano/M. Carrano/M. Carrano]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 150933: authorized by Matthew Carrano, entered by Matthew Carrano on 18.09.2013

Creative Commons license: CC BY (attribution)