KJ88128 (DMNH 440) (Cretaceous of the United States)

Also known as Marshall's Turtle; KJ9147;KJ9318;KJ9746;KJ9851

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)

• -2.2m to Hell Creek-Fort Union contact datum, -4.795m to K-T boundary based on calculations in Johnson (2002)

• bed-level stratigraphic resolution

Environment/lithology: crevasse splay; poorly lithified siltstone

Size class: macrofossils

Preservation: adpression

Reposited in the DMNH

Collection methods: quarrying, 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 25911: authorized by Kirk Johnson, entered by Michele Reynolds on 28.09.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Liriodendrites bradacii
Johnson; HC166
Equisetopsida
 Pinidae - Pinidae
Dammarites "HC257" Presl 1838
HC257
Pteridopsida
 Filicales -
Cycadopsida
 Cycadales -
"Nilssonia yukonensis" = Nilsonia
"Nilssonia yukonensis" = Nilsonia cycads
HC164
Angiospermae
 Malvales - Tiliaceae
 Rosales - Rhamnaceae
Rhamnaceae "HC261" Jussieu 1789 buckthorn
HC261
 Vitales - Vitaceae
Vitis stantonii grapevine
HC014
 Rosids - Moraceae
Ficus planicostata Lesquereux 1872 fig
HC004
Artocarpus lessigiana Knowlton mulberry
HC179
  -
"Dicotyledonae "HC280"" = Dicotyledoneae, "Dicotyledonae "HC321"" = Dicotyledoneae, "Dicotyledonae "HC337"" = Dicotyledoneae
"Dicotyledonae "HC280"" = Dicotyledoneae
HC280
"Dicotyledonae "HC321"" = Dicotyledoneae
HC321
"Dicotyledonae "HC337"" = Dicotyledoneae
HC337
 Nymphaeales - Nymphaeaceae
Paranymphaea hastata water lily
HC111
 Proteales - Platanaceae
Platanites marginata Lesquereux 1872
HC001-006
 Mesangiosperms - Arecaceae
Amesoneuron "FU037" Göppert 1852 palm
Hickey and Read; FU037
 Magnoliid - Magnoliidae
"Magnoliidae "HC043"" = Magnoliid
"Magnoliidae "HC043"" = Magnoliid Jud 2011
HC043
 Laurales -
Laurales "HC163" Jussieu 1820
HC163
 Laurales - Lauraceae
Marmarthia pearsonii Johnson 1996 laurel
Johnson; HC162
Marmarthia trivialis Johnson 1996 laurel
(Lesquereux) Johnson; HC105
Pinopsida
 Pinales - Taxaceae