UCMP Loc. A-1543 - Cowlitz River [Cowlitz Fm]: Bartonian, Washington
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
|
Thecostraca
- Balanomorpha
- Balanidae
|
|||||||
|
Balanus (Hesperibalanus) cornwalli
Zullo 1966
|
|||||||
| recombined as Solidobalanus (Hesperibalanus) cornwalli | |||||||
|
Gastropoda
- Neogastropoda
- Buccinidae
|
|||||||
|
Cantharus (Eocantharus) cowlitzensis n. sp.
Clark 1938
|
Clark 1938 | ||||||
|
Scaphopoda
- Gadilida
- Gadilidae
|
|||||||
|
Cadulus (Platyschides) gabbi
(Sharp and Pilsbry 1898)
|
Emerson 1957 | ||||||
| see common names | |||||||
Geography
| Country: | United States | State/province: | Washington | County: | Lewis |
| Coordinates: | 46.4° North, 122.9° West (view map) | ||||
| Paleocoordinates: | 47.3° North, 109.4° West | ||||
| Basis of coordinate: | estimated from map | ||||
| Geographic resolution: | outcrop |
Time
| Period: | Paleogene | Epoch: | Eocene |
| Stage: | Bartonian | 10 m.y. bin: | Cenozoic 3 |
| Key time interval: | Bartonian | Nannofossil zone: | NP16-NP17 |
| Age range of interval: | 41.20000 - 37.71000 m.y. ago |
Stratigraphy
| Formation: | Cowlitz | ||||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: LITHOSTRATIGRAPHY: From the Cowlitz Formation, for which lithostratigraphic relationships are not discussed. AGE: Calcareous nannoplankton most precisely age this unit, placing the Cowlitz fauna in nannoplankton zones NP16 and NP17 (Martini, 1971) and upper CP14 (Oklada and Bukry, 1980), which correlates to the late middle Eocene (40-43 Ma) age (Berggren et al., 1992). Molluscan biostratigraphy suggests a "Tejon" stage age or "Cowlitz-Coaldeo" molluscan stage = Middle Eocene. Collection is assigned to the Bartonian=late Middle Eocene. STRATIGRAPHIC POSITION: From unknown position within formation. | |||||
Lithology and environment
| Primary lithology: | unlithified sandstone |
| Includes fossils? | Y |
| Lithology description: LITHOLOGY: Unconsolidated buff sandstone. LITHIFICATION: Unlithified, based on figured specimens and facies description. | |
| Environment: | offshore |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | mesofossils |
| Preservation of anatomical detail: | good |
Collection methods and comments
| Collection methods: | surface (float),surface (in situ),survey of museum collection |
| Reason for describing collection: | taxonomic analysis |
| Museum repositories: | UMMP |
| Collection method comments: COLLECTORS: Unknown. REPOSTORY: Museum of Paleontology, University of California (UCMP). | |
| Taxonomic list comments:COVERAGE: Limited to Cirripedia. NOMENCLATURE: Authoritative publication, but with somewhat antiquated nomenclatures, and species-resolution identifications. | |
Metadata
| Database number: | 160105 | ||
| Authorizer: | A. Hendy, J. Marcot, P. Holroyd | Enterer: | A. Hendy, J. Marcot, P. Holroyd |
| Modifier: | A. Hendy | Research group: | marine invertebrate |
| Created: | 2014-08-14 23:13:29 | Last modified: | 2014-08-14 23:18:56 |
| Access level: | the public | Released: | 2014-08-14 23:13:29 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 52252. | V. A. Zullo. 1966. A new species of Balanus (Cirripedia, Thoracica) from the Late Eocene Cowlitz Formation of southern Washington, U.S.A. Crustaceana 11(2):198-204 [A. Hendy/A. Hendy] |
Secondary references:
| 64483 | B. L. Clark. 1938. Fauna from the Markley Formation (Upper Eocene) on Pleasant Creek, California . Bulletin of the Geological Society of America 49:683-730 [P. Holroyd/P. Holroyd] | |
| 88146 | W. K. Emerson. 1957. Three New Tertiary Scaphopods, with a Review of the Extinct Western North American Siphonodentaliidae. Journal of Paleontology 31(5):985-991 [J. Marcot/J. Marcot] |