KJ9262 CENSUS (DMNH l.573) (Cretaceous of the United States)

Also known as Bobcat HCIII

Where: Slope County, North Dakota (46.3° N, 103.9° W: paleocoordinates 52.5° N, 77.3° W)

• coordinate stated in text

• small collection-level geographic resolution

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

• -1.39m to Hell Creek-Fort Union contact datum, -2.14m 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

Reposited in the DMNH

Collection methods: bulk, mechanical,

• Specimens located at Denver Museum of Nature & Science

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 25501: authorized by Kirk Johnson, entered by Michele Reynolds on 13.09.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Liriodendrites bradacii
Johnson; HC166
Angiospermae
 Malvales - Tiliaceae
 Fagales - Nothofagaceae
Dryophyllum tennesseensis Berry 1916
HC044
 Rosids - Moraceae
Ficus planicostata Lesquereux 1872 fig
HC004
 Nymphaeales - Nymphaeaceae
Paranymphaea hastata water lily
HC111
 Proteales - Platanaceae
Platanites marginata Lesquereux 1872
HC001-106
 Laurales - Lauraceae
Marmarthia pearsonii Johnson 1996 laurel
Johnson; HC162
 Mesangiosperms - Arecaceae
Amesoneuron "FU037" Göppert 1852 palm
Hickey and Read; FU037
 Mesangiosperms - Araceae
Porosia verrucosa Lesquereux 1878
HC012