Jansen Creek, southeast: Rupelian, Washington
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
|
Gastropoda
- Neogastropoda
- Volutidae
|
|||||||
| see common names | |||||||
Geography
| Country: | United States | State/province: | Washington | County: | Clallam |
| Coordinates: | 48.3° North, 124.5° West (view map) | ||||
| Paleocoordinates: | 53.4° North, 107.4° West (Wright 2013) | ||||
| Basis of coordinate: | based on nearby landmark | ||||
| Geographic resolution: | outcrop |
Time
| Period: | Paleogene | Epoch: | Oligocene |
| Stage: | Rupelian | 10 m.y. bin: | Cenozoic 4 |
| Key time interval: | Rupelian | ||
| Age range of interval: | 33.9 - 27.3 m.y. ago |
Stratigraphy
| Formation: | Makah | Member: | Jansen Creek |
| Stratigraphic resolution: | member |
Lithology and environment
| Primary lithology: | volcaniclastic,shelly/skeletal poorly lithified sandstone |
| Secondary lithology: | volcaniclastic,shelly/skeletal conglomerate |
| Includes fossils? | Y |
| Includes fossils? | Y |
| Lithology description: SPECIFIC LITHOLOGY: Olistostromal blocks of shallow-water basaltic sandstone and conglomerate; interbedded fossiliferous basaltic sandstone and pebble conglomerate. LITHIFICATION: Assumed to be poorly lithified-lithified based on photographic plates of outcrop exposures. | |
| Environment: | deep-water indet. |
| Geology comments: ENVIRONMENT: Addicott (written communs., 1973-1977) suggested a middle-outer sublittoral environment of deposition. Foraminiferal assemblages indicate a shallow-water depositional environment. This unit is underlain and overlain by lower to middle bathyal sediments, supporting the interpretation that the shallow-marine sediments are allocthonous deposits derived from uplifted older strata along an ancient narrow shelf that borded the deep marginal basin of the Makah. These shallow-water deposits were transported into the deep marginal basin by a large submarine slide. | |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Reason for describing collection: | biostratigraphic analysis |
| Museum repositories: | USNM |
Metadata
| Also known as: | JLG 221 | ||
| Database number: | 205208 | ||
| Authorizer: | M. Uhen | Enterer: | M. Uhen | Research group: | marine invertebrate |
| Created: | 2019-10-08 17:35:57 | Last modified: | 2025-02-22 15:12:02 |
| Access level: | the public | Released: | 2019-10-08 17:35:57 |
| Creative Commons license: | CC0 | ||
Reference information
Primary reference:
| 70415. | R. L. Squires and J. L. Goedert. 1994. A new species of the volutid gastropod Fulgoraria (Musashia) from the Oligocene of Washington. The Veliger 37(4):400-409 [M. Uhen/M. Uhen] |