KJ87147a (Cretaceous of the United States)

Also known as KJ87147a, 88125

Where: Slope County, North Dakota (46.3° N, 103.9° W)

• Paleocoordinates: 56.4° N, 62.8° W (Wright 2013)

• coordinate stated in text

• small collection-level geographic resolution

When: HCIII zone, Hell Creek Formation, Lancian (70.6 - 66.0 Ma)

• -15.3m to Hell Creek-Fort Union contact datum, -17.895m to K-T boundary based on calculations in Johnson (2002)

• bed-level stratigraphic resolution

Environment/lithology: fine channel fill; poorly lithified sandstone

Size class: macrofossils

Preservation: adpression

Collection methods: quarrying, mechanical,

• Specimens located at Yale Peabody Museum

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 48198: authorized by Kirk Johnson, entered by Kirk Johnson on 15.03.2005

Creative Commons license: CC0 (CC0)

Taxonomic list

Angiospermae
 Nymphaeales - Nymphaeaceae
Paranymphaea hastata water lily
HC111
 Proteales - Platanaceae
Platanaceae "HC209" Lestiboudois 1826
HC209
Platanites marginata Lesquereux 1872
HC1-106
 Saxifragales - Cercidiphyllaceae
 Magnoliid - Magnoliidae
"Magnoliidae "HC66"" = Magnoliid
"Magnoliidae "HC66"" = Magnoliid Jud 2011
HC66
 Laurales - Lauraceae
Marmarthia trivialis Johnson 1996 laurel
(Lesquereux) Johnson; HC105