Also known as Wet Butt, KJ9529
Where: Slope County, North Dakota (46.2° N, 103.8° W: paleocoordinates 52.4° N, 77.3° W)
• coordinate stated in text
• small collection-level geographic resolution
When: HCIIa zone, Hell Creek Formation, Lancian (70.6 - 66.0 Ma)
• -32m to Hell Creek-Fort Union contact datum, -33.7m 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: 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 48216: authorized by Kirk Johnson, entered by Kirk Johnson on 15.03.2005
Creative Commons license: CC BY (attribution)
Taxonomic list
unclassified | |
| |
Magnoliopsida | |
| |
| |
Angiospermae | |
| |
"Magnoliidae "HC66"" = Magnoliid
| |
| |
| |
| |
| |
| |
"Dicotyledonae "HC65"" = Dicotyledoneae, "Dicotyledonae "HC76"" = Dicotyledoneae, "Dicotyledonae "HC242"" = Dicotyledoneae, "Dicotyledonae "HC254"" = Dicotyledoneae, "Dicotyledonae "HC268"" = Dicotyledoneae, "Dicotyledonae "HC269"" = Dicotyledoneae, "Dicotyledonae "HC270"" = Dicotyledoneae, "Dicotyledonae "HC272"" = Dicotyledoneae, "Dicotyledonae "HC273"" = Dicotyledoneae, "Dicotyledonae "HC274"" = Dicotyledoneae, "Dicotyledonae "HC281"" = Dicotyledoneae, "Dicotyledonae "HC285"" = Dicotyledoneae, "Dicotyledonae "HC290"" = Dicotyledoneae, "Dicotyledonae "HC291"" = Dicotyledoneae
| |
Ginkgoopsida | |
| |
Hydropteris pinnata | |
| |
Leepierceia preartocarpoides | |
|