Also known as Mud Butte/Dean St., KJ88102, 9135, 9261, 9412/48, 9533
Where: Bowman County, North Dakota (46.0° N, 103.8° W: paleocoordinates 52.4° N, 77.2° W)
• coordinate stated in text
• small collection-level geographic resolution
When: HCIII zone, Hell Creek Formation, Lancian (70.6 - 66.0 Ma)
• -15m to Hell Creek-Fort Union contact datum, -15m 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 and 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 48273: authorized by Kirk Johnson, entered by Kirk Johnson on 15.03.2005
Creative Commons license: CC BY (attribution)
Taxonomic list
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Pinopsida | |
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Angiospermae | |
"Dicotyledonae "FU47"" = Dicotyledoneae, "Dicotyledonae "HC3"" = Dicotyledoneae, "Dicotyledonae "HC169"" = Dicotyledoneae, "Dicotyledonae "HC183"" = Dicotyledoneae, "Dicotyledonae "HC187"" = Dicotyledoneae, "Dicotyledonae "HC264"" = Dicotyledoneae, "Dicotyledonae "HC280"" = Dicotyledoneae, "Dicotyledonae "HC286"" = Dicotyledoneae, "Dicotyledonae "HC321"" = Dicotyledoneae, "Dicotyledonae "HC343"" = Dicotyledoneae, "Dicotyledonae "HC363"" = Dicotyledoneae
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Dicotyledoneae | |
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Angiospermae | |
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"Magnoliidae "HC66"" = Magnoliid
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Pteridopsida | |
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