Harding Formation Trilobites B: Caradoc, Colorado
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Trilobita
- Proetida
- Dimeropygidae
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Toernquistia sp.
Reed 1896
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| see common names | |||||||
Geography
| Country: | United States | State/province: | Colorado | County: | Fremont |
| Coordinates: | 38.0° North, 105.0° West (view map) | ||||
| Paleocoordinates: | 14.9° South, 74.0° West | ||||
| Geographic resolution: | local area |
Time
| Period: | Ordovician | Epoch: | Late Ordovician |
| 10 m.y. bin: | Ordovician 4-5 | ||
| Key time interval: | Caradoc | ||
| Age range of interval: | 458.4 - 449.6 m.y. ago |
Stratigraphy
| Formation: | Harding | ||||
| Stratigraphic resolution: | formation | ||||
| Stratigraphy comments: Stratigraphy from "Harding and Fremont Formations, Colorado" Sweet 1954. | |||||
Lithology and environment
| Primary lithology: | chert | ||
| Includes fossils? | Y | ||
| Environment: | marine indet. | Tectonic setting: | cratonic basin |
| Geology comments: Environments from S. Holland | |||
Taphonomy
| Modes of preservation: | mold/impression |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection methods: | field collection |
| Reason for describing collection: | biostratigraphic analysis |
Metadata
| Database number: | 170686 | ||
| Authorizer: | M. Hopkins | Enterer: | M. Hopkins | Research group: | marine invertebrate |
| Created: | 2015-06-26 14:21:54 | Last modified: | 2015-06-26 14:21:54 |
| Access level: | the public | Released: | 2015-06-26 14:21:54 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 3835. | E. A. Frederickson and J. M. Pollack. 1952. Two Trilobite Genera from the Harding Formation (Ordovician) of Colorado. Journal of Paleontology 26(4):641-644 [S. Holland/T. Hanson] |