Emigrant Pass. Bristolia anteros occurrence zonule subunit 2: Dyeran, California
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
|
Trilobita
- Redlichiida
- Olenellidae
|
||||||||||
|
Olenellus sp.1 n. sp.
|
||||||||||
| Olenellus (Paedeumias) n. sp.1 | ||||||||||
|
Olenellus sp.2 n. sp.
|
||||||||||
| Olenellus (Mesonacis) n. sp. 2 | ||||||||||
|
Olenellus cf. transitans
(Walcott 1910)
|
||||||||||
| Olenellus (Paedeumias) cf. transitans | ||||||||||
|
Olenellus nevadensis
(Walcott 1910)
|
||||||||||
| Olenellus (Paedeumias) nevadensis | ||||||||||
|
Olenellus fremonti
Walcott 1910
|
||||||||||
| Olenellus (Mesonacis) fremonti | ||||||||||
|
Trilobita
- Redlichiida
- Biceratopsidae
|
||||||||||
|
Bristolia sp.2 n. sp.
|
||||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | California | County: | Inyo |
| Coordinates: | 35.8° North, 116.2° West (view map) | ||||
| Paleocoordinates: | 1.8° South, 97.0° West | ||||
| Basis of coordinate: | based on nearby landmark | ||||
| Geographic resolution: | outcrop |
Time
| Period: | Cambrian | Epoch: | Series 2 |
| 10 m.y. bin: | Cambrian 2-3 | ||
| *Period: | Early/Lower Cambrian | *Epoch: | Caerfai |
| *International age/stage: | Lenian | *Local age/stage: | Dyeran |
| Key time interval: | Dyeran | Trilobite zone: | Bristolia anteros |
| Age range of interval: | 514.8 - 511 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
| Formation: | Carrara | Member: | Echo/Eagle Shale |
| Stratigraphic resolution: | group of beds |
Lithology and environment
| Primary lithology: | lithified "shale" |
| Secondary lithology: | lithified siltstone |
| Includes fossils? | Y |
| Lithology description: shale with thin bedded micaceous siltstone | |
| Environment: | transition zone/lower shoreface |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection excludes: | some macrofossils |
| Collection methods: | field collection |
| Reason for describing collection: | biostratigraphic analysis |
| Collection method comments: Specimens from this site are split into an informal zonation. The zonation utilizes both acme and occurrence zonules, and subdivides some zonules into numbered subunits based on clearly distinguishable assemblages. However, relative species abundances, although reflected to some extent in the biostratigraphic zonation, are not listed. Only trilobites are included in the faunal list. The zonule name will be listed in the Zone datafield. | |
Metadata
| Also known as: | Bristolia anteros occurrence zonule subunit 2, CA - Fowler 1999 | ||
| Database number: | 10612 | ||
| Authorizer: | M. Patzkowsky | Enterer: | P. Borkow |
| Modifier: | P. Wagner | Research group: | marine invertebrate |
| Created: | 2001-05-29 10:51:59 | Last modified: | 2018-08-16 22:03:37 |
| Access level: | the public | Released: | 2001-05-29 10:51:59 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 3929. | E. D. Fowler. 1999. Biostratigraphy of upper Dyeran strata of the Carrara Formation, Emigrant Pass, Nopah Range, California. Laurentia 99: V field conference of the Cambrian Stage Subdivision Working Group, International Subcomission on Cambrian Stratigraphy 46-50 [M. Patzkowsky/P. Borkow] |