USGS 12340. Colamnagavik River Valley: Holkerian, Alaska
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
|
Gastropoda
- Murchisoniina
- Gosseletinidae
|
|||||||
|
Nodospira ornata
Yochelson and Dutro 1960
|
22 specimens | ||||||
| see common names | |||||||
Geography
| Country: | United States | State/province: | Alaska |
| Coordinates: | 68.6° North, 154.5° West (view map) | ||
| Paleocoordinates: | 27.3° North, 18.8° West | ||
| Basis of coordinate: | stated in text | ||
| Geographic resolution: | local area |
Time
| Period: | Carboniferous | Epoch: | Mississippian |
| Stage: | Visean | 10 m.y. bin: | Carboniferous 2 |
| Key time interval: | Holkerian | ||
| Age range of interval: | 346.7 - 340.2 m.y. ago |
Stratigraphy
| Formation: | Alapah | ||||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: Goniatites crenistria zone | |||||
Lithology and environment
| Primary lithology: | lithified cherty/siliceous "shale" |
| Environment: | marine indet. |
Taphonomy
| Size of fossils: | macrofossils |
Collection methods and comments
| Reason for describing collection: | taxonomic analysis |
| Museum repositories: | USNM |
Metadata
| Also known as: | 50 ACh 41 | ||
| Database number: | 59937 | ||
| Authorizer: | P. Wagner | Enterer: | P. Wagner |
| Modifier: | P. Wagner | Research group: | marine invertebrate |
| Created: | 2006-04-22 10:14:22 | Last modified: | 2006-09-13 16:59:44 |
| Access level: | the public | Released: | 2006-04-22 10:14:21 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 16476. | E. L. Yochelson and J.T. Dutro. 1960. Late Paleozoic Gastropoda from northern Alaska. United States Geological Survey Professional Paper 334(D):111-147 [P. Wagner/P. Wagner] |