KJ88103g (DMNH 2605): Puercan, North Dakota
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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unclassified
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| Johnson 2002 | 10 specimens | ||||||
| Johnson 2002 | 1 specimen | ||||||
| Johnson 2002 | 9 specimens | ||||||
| Johnson 2002 | 40 specimens | ||||||
| Johnson 2002 | 20 specimens | ||||||
| Johnson 2002 | 3 specimens | ||||||
| Johnson 2002 | 1 specimen | ||||||
| Johnson 2002 | 1 specimen | ||||||
| Johnson 2002 | 1 specimen | ||||||
| Johnson 2002 | 9 specimens | ||||||
| Johnson 2002 | 1 specimen | ||||||
| Johnson 2002 | 4 specimens | ||||||
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informal spe informal FU036 non-seed repro
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Johnson 2002 | 1 specimen | |||||
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informal dicot informal FU082 seed/fruit
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Johnson 2002 | 19 specimens | |||||
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informal dicot informal FU092 seed/fruit
|
Johnson 2002 | 1 specimen | |||||
| see common names | |||||||
Geography
| Country: | United States | State/province: | North Dakota | County: | Bowman |
| Coordinates: | 46.0° North, 103.8° West (view map) | ||||
| Paleocoordinates: | 55.2° North, 65.2° West (Wright 2013) | ||||
| Basis of coordinate: | stated in text | ||||
| Altitude: | 3200 feet | ||||
| Geographic resolution: | small collection |
Time
| Period: | Paleogene | Epoch: | Paleocene |
| Stage: | Danian | 10 m.y. bin: | Cenozoic 1 |
| *Period: | Early/Lower Tertiary | *Epoch: | Early/Lower Paleocene |
| *International age/stage: | Early/Lower Danian | *Local age/stage: | Puercan |
| Key time interval: | Puercan | Zone: | FUI |
| Age range of interval: | 66 - 63.8 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
| Formation: | Fort Union | Member: | Ludlow | ||
| Local section: | 88103 | ||||
| Regional section: | Marmarth Composite | ||||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: 18m to Hell Creek-Fort Union contact datum, 18m to K-T boundary based on calculations in Johnson (2002 | |||||
Lithology and environment
| Primary lithology: | poorly lithified siltstone | ||
| Includes fossils? | Y | ||
| Environment: | crevasse splay | Tectonic setting: | cratonic basin |
Taphonomy
| Modes of preservation: | adpression |
| Size of fossils: | macrofossils |
| Spatial orientation: | random |
| Temporal resolution: | snapshot |
| Spatial resolution: | allochthonous |
Collection methods and comments
| Collection methods: | selective quarrying,mechanical,field collection |
| Collection size: | 121 specimens |
| Reason for describing collection: | general faunal/floral analysis |
| Museum repositories: | DMNH |
| Collection method comments: Specimens located at Yale Peabody Museum | |
Metadata
| Also known as: | KJ0152 | ||
| Database number: | 25415 | ||
| Authorizer: | K. Johnson | Enterer: | M. Reynolds |
| Modifier: | M. Reynolds | Research group: | paleobotany |
| Created: | 2002-09-11 20:43:47 | Last modified: | 2025-02-22 15:12:02 |
| Access level: | the public | Released: | 2002-09-11 20:43:47 |
| Creative Commons license: | CC0 | ||
Reference information
Primary reference:
| 7941. | 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] |
Secondary references:
| 6985 | K. R. Johnson. 2002. Personal field work re: HC and FU formations. [K. Johnson/M. Reynolds/M. Reynolds] |