USGS Cenozoic M4656 East Twin Creek: Middle Eocene, California
collected by Nilsen, T. H. 1971
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
|
Gastropoda
- Turritellidae
|
||||||||||
|
Turritella cf. andersoni
Dickerson 1916
|
||||||||||
| susannae | ||||||||||
|
Gastropoda
- Neogastropoda
- Muricidae
|
||||||||||
|
Muricopsis cf. whitneyi
(Gabb 1864)
|
||||||||||
|
Bivalvia
- Pectinida
- Spondylidae
|
||||||||||
|
? Spondylus sp.
Linnaeus 1758
|
||||||||||
|
Bivalvia
- Carditida
- Carditidae
|
||||||||||
|
Venericardia sp.
Lamarck 1801
|
||||||||||
| small specimen | ||||||||||
|
unclassified
|
||||||||||
|
Foraminifera indet.
(Eichwald 1830)
|
||||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | California | County: | Kern |
| Coordinates: | 34.9° North, 119.3° West (view map) | ||||
| Paleocoordinates: | 35.2° North, 106.1° West | ||||
| Basis of coordinate: | stated in text | ||||
| Geographic resolution: | outcrop |
Time
| Period: | Paleogene | Epoch: | Eocene |
| 10 m.y. bin: | Cenozoic 2-3 | ||
| Key time interval: | Middle Eocene | ||
| Age range of interval: | 47.80000 - 37.71000 m.y. ago |
Stratigraphy
| Formation: | Tejon | Member: | Uvas Conglomerate | ||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: Possibly early Eocene. The doubtfully identified
Turritella ranges from the upper Paleocene "Meganos Stage" to the lower Eocene "Capay Stage." Correlation with the "Capay" is suggested by the fact that this assemblage overlies an undoubted "Capay" locality (USGS loc. M4654). Large foraminifers identified by K. N. Sachs, Jr., from the same locality (written commun., Feb. 15,1972): | |||||
Lithology and environment
| Primary lithology: | not reported |
| Environment: | marine indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection methods: | field collection | ||
| Reason for describing collection: | biostratigraphic analysis | ||
| Collectors: | Nilsen, T. H. | Collection dates: | 1971 |
Metadata
| Also known as: | UCMP IP8675 | ||
| Database number: | 194433 | ||
| Authorizer: | P. Holroyd | Enterer: | S. Tremblay |
| Modifier: | S. Tremblay | Research group: | marine invertebrate |
| Created: | 2018-06-19 19:04:45 | Last modified: | 2018-06-22 19:41:27 |
| Access level: | the public | Released: | 2018-06-19 19:04:45 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 14208. | T. H. Nilsen. 1987. Stratigraphy and sedimentology of the Eocene Tejon Formation, western Tehachapi and San Emigdio mountains, California. United States Geological Survey Professional Paper 1268:1-110 [A. Miller/A. Hendy/R. McClees-Funinan] |