KJ9736 (DMNH 2091) (Cretaceous of the United States)

Also known as Kevin's First Palaeoaster, KJ9736

Where: Slope County, North Dakota (46.4° N, 103.9° W: paleocoordinates 52.6° 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)

• -8.95m to Hell Creek-Fort Union contact datum, -10.07m to K-T boundary based on calculations in Johnson (2002)

• bed-level stratigraphic resolution

Environment/lithology: wet floodplain; poorly lithified siltstone

Size class: macrofossils

Preservation: adpression

Reposited in the DMNH

Collection methods: quarrying, 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 48182: authorized by Kirk Johnson, entered by Kirk Johnson on 15.03.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Angiospermae
 Fagales - Nothofagaceae
 Rosids - Moraceae
Artocarpus lessigiana Knowlton mulberry
HC179
 Proteales - Platanaceae
Platanites marginata Lesquereux 1872
HC1-106
 Saxifragales - Cercidiphyllaceae
 Magnoliid - Magnoliidae
"Magnoliidae "HC43"" = Magnoliid
"Magnoliidae "HC43"" = Magnoliid Jud 2011
HC43
 Laurales - Lauraceae
Marmarthia trivialis Johnson 1996 laurel
(Lesquereux) Johnson; HC105
Marmarthia pearsonii Johnson 1996 laurel
Johnson; HC162
 Mesangiosperms - Arecaceae
Amesoneuron "FU37" Göppert 1852 palm
Hickey and Read; FU37
  -
"Dicotyledonae "HC280"" = Dicotyledoneae, "Dicotyledonae "HC285"" = Dicotyledoneae, "Dicotyledonae "HC287"" = Dicotyledoneae, "Dicotyledonae "HC293"" = Dicotyledoneae
"Dicotyledonae "HC280"" = Dicotyledoneae
HC280
"Dicotyledonae "HC285"" = Dicotyledoneae
HC285
"Dicotyledonae "HC287"" = Dicotyledoneae
HC287
"Dicotyledonae "HC293"" = Dicotyledoneae
HC293
 Coniferales - Cupressaceae
Sequoia "HC70" Endlicher 1847 coast redwood
HC70
Pinopsida
 Pinales - Taxaceae