New Havre Badlands: Middle Campanian - Late/Upper Campanian, Montana
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Geography
| Country: | United States | State/province: | Montana | County: | Blaine |
| Coordinates: | 48.5° North, 109.7° West (view map) | ||||
| Paleocoordinates: | 55.6° North, 75.4° West | ||||
| Basis of coordinate: | based on nearby landmark |
Time
| Period: | Cretaceous | Epoch: | Late/Upper Cretaceous |
| Stage: | Campanian | 10 m.y. bin: | Cretaceous 7 |
| Key time interval: | Middle Campanian - Late/Upper Campanian | ||
| Age range of interval: | 83.60000 - 72.10000 m.y. ago |
Stratigraphy
| Formation: | Judith River |
Lithology and environment
| Primary lithology: | "siliciclastic" |
| Lithology description: The Site is composed of Bentonite with Soda-ash (Alkali) in association, small residues of Kaolinite (poor grade) containing lignitized wood shards, and resin (Amber). The site is a Lake deposit. | |
| Environment: | lacustrine indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils,mesofossils |
Collection methods and comments
| Reason for describing collection: | taxonomic analysis |
Metadata
| Database number: | 69250 | ||
| Authorizer: | J. Kriwet | Enterer: | W. Glaeser |
| Modifier: | G. Varnham | Research group: | vertebrate |
| Created: | 2007-02-22 08:01:21 | Last modified: | 2022-03-31 04:57:54 |
| Access level: | the public | Released: | 2007-02-22 08:01:21 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 19785. | G. R. Case. 1978. A new selachian fauna from the Judith River Formation (Campanian) of Montana. Palaeontographica Abteilung A 160(Lfg. 1-6):176-205 [J. Kriwet/W. Glaeser/M. Carrano] |