1400-CO, O.W. Canyon Sect, Combiend Metal Mb, NV - Sundberg and McCollum 2000: Dyeran, Nevada
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
|
Trilobita
- Ptychopariida
|
|||||||
|
Eokochaspis metalaspis
Sundberg and McCollum 2000
|
31 specimens | ||||||
| see common names | |||||||
Geography
| Country: | United States | State/province: | Nevada | County: | Lincoln |
| Coordinates: | 37.9° North, 114.6° West (view map) | ||||
| Paleocoordinates: | 3.4° South, 95.0° West | ||||
| Geographic resolution: | outcrop |
Time
| Period: | Cambrian | Epoch: | Series 2 |
| 10 m.y. bin: | Cambrian 2-3 | ||
| *Period: | Early/Lower Cambrian - Middle Cambrian | *Epoch: | Caerfai |
| *International age/stage: | Lenian | ||
| Key time interval: | Dyeran | Zone: | Olenellus |
| Age range of interval: | 514.8 - 511 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
| Formation: | Pioche Shale | Member: | Combined Metals | ||
| Local section: | One Wheel Canyon | Local bed: | 1 m | ||
| Local order: | top to bottom | ||||
| Stratigraphic resolution: | group of beds | ||||
| Stratigraphy comments: upper meter of the Combined Metals Member.
Was Lenian. | |||||
Lithology and environment
| Primary lithology: | lithified "limestone" |
| Lithology description: limestone nodules | |
| Environment: | carbonate indet. |
Taphonomy
| Modes of preservation: | body,replaced with silica |
| Size of fossils: | mesofossils |
Collection methods and comments
| Collection excludes: | some macrofossils |
| Collection methods: | field collection |
| Reason for describing collection: | taxonomic analysis |
Metadata
| Database number: | 9214 | ||
| Authorizer: | M. Patzkowsky | Enterer: | P. Borkow |
| Modifier: | P. Wagner | Research group: | marine invertebrate |
| Created: | 2000-10-04 07:59:23 | Last modified: | 2010-05-22 11:58:12 |
| Access level: | the public | Released: | 2000-10-04 07:59:23 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 798. | F. A. Sundberg and L. B. McCollum. 2000. Ptychoparid trilobites of the Lower-Middle Cambrian boundary interval, Pioche Shale, southeastern Nevada. Journal of Paleontology 74(4):604-630 [M. Patzkowsky/P. Borkow/J. Alroy] |