John Brown Canyon HB 250, northern Humboldt Range: Aegean, Nevada
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
|
Cephalopoda
- Ceratitida
- Keyserlingitidae
|
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Pseudokeyserlingites guexi
Bucher 1989
|
1 specimen | ||||||
| see common names | |||||||
Geography
| Country: | United States | State/province: | Nevada |
| Coordinates: | 40.5° North, 118.1° West (view map) | ||
| Paleocoordinates: | 11.1° North, 41.7° West | ||
| Basis of coordinate: | estimated from map | ||
| Geographic resolution: | small collection |
Time
| Period: | Triassic | Epoch: | Middle Triassic |
| Stage: | Anisian | 10 m.y. bin: | Triassic 2 |
| Key time interval: | Aegean | Ammonoid zone: | Pseudokeyserlingites guexi beds |
| Age range of interval: | 247.2 - 245.5 m.y. ago |
Stratigraphy
| Geological group: | Star Peak | Formation: | Prida | Member: | Fossil Hill |
Lithology and environment
| Primary lithology: | lithified not reported |
| Environment: | marine indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Reason for describing collection: | taxonomic analysis |
| Museum repositories: | USNM |
Metadata
| Database number: | 138818 | ||
| Authorizer: | M. Clapham | Enterer: | M. Clapham | Research group: | marine invertebrate |
| Created: | 2013-01-28 15:24:11 | Last modified: | 2013-11-25 13:02:06 |
| Access level: | the public | Released: | 2013-01-28 15:24:11 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 44490. | H. Bucher. 1989. Lower Anisian ammonoids from the northern Humboldt Range (northwestern Nevada, USA) and their bearing upon the Lower-Middle Triassic boundary. Eclogae Geologicae Helvetiae 82:945-1002 [M. Clapham/M. Clapham/M. Clapham] |