ammonites
Piegan/Piikani bonebed (proxy) (Cretaceous of the United States)

Also known as Prenoceratops type site

Where: Pondera County, Montana (48.5° N, 112.5° W: paleocoordinates 56.2° N, 78.6° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: Two Medicine Formation, Campanian (83.5 - 70.6 Ma)

• 50 m below Bearpaw/Two Medicine contact (low in formation)

• bed-level stratigraphic resolution

Environment/lithology: terrestrial

Size class: macrofossils

Collection methods: quarrying, mechanical,

• privately collected and sold to Mokpo Natural History & Culture Museum (Korea) and the Childrens Museum of Indianapolis (IN)

Primary reference: B. J. Chinnery and J. R. Horner. 2003. New basal neoceratopsian from the lower Two Medicine Formation of Montana provides a link between Asian and North American taxa. Journal of Vertebrate Paleontology 23(3, suppl.):40A [M. Carrano/M. Carrano] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 69931: authorized by Matt Carrano, entered by Matt Carrano on 12.03.2007