Also known as Pyramid Butte; KJ87106, KJ9133/4, KJ9314, KJ9637

Where: Slope County, North Dakota (46.4° N, 104.0° W: paleocoordinates 52.6° N, 77.3° W)

• coordinate stated in text

• small collection-level geographic resolution

When: FUI zone, Ludlow Member (Fort Union Formation), Lancian (70.6 - 65.5 Ma)

• 1.15m to Hell Creek-Fort Union contact datum, 0.19m to K-T boundary based on calculations in Johnson (2002)

• bed-level stratigraphic resolution

Environment/lithology: pond; poorly lithified mudstone

Size class: macrofossils

Preservation: adpression

Reposited in the DMNH

Collection methods: bulk, mechanical,

• Voucher collection for this locality listed at #25469

Primary reference: K. R. Johnson. 2002. Megaflora of the Hell Creek and lower Fort Union Formations in the western Dakotas: Vegetational response to climate change, the Cretaceous-Tertiary boundary event, and rapid marine transgression. The Hell Creek Formation and the Cretaceous-Tertiary boundary in the northern Great Plains: An integrated continental record of the end of the Cretaceous. 361:329-391 [S. Wing/S. Wing/K. Johnson] more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 25468: authorized by Kirk Johnson, entered by Michele Reynolds on 12.09.2002