Where: Big Horn County, Montana (45.5° N, 108.1° W: paleocoordinates 44.9° N, 59.7° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Cloverly Formation, Aptian to Aptian (125.0 - 100.5 Ma)

• unknown member

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported

Size class: macrofossils

Collected by B. Brown in 1955; reposited in the AMNH

Collection methods: quarrying, mechanical,

Primary reference: J. H. Ostrom. 1970. Stratigraphy and paleontology of the Cloverly Formation (Lower Cretaceous) of the Bighorn Basin area, Wyoming and Montana. Peabody Museum Bulletin 35:1-234 [M. Carrano/M. Carrano/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 50723: authorized by Matthew Carrano, entered by Matthew Carrano on 19.05.2005

Creative Commons license: CC BY (attribution)