H-17: Blackhillsian, Utah
collected by L.F. Hintze
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
|
Trilobita
- Asaphida
- Asaphidae
|
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|
Trigonocerca typica
Ross 1951
|
Hintze 1953 | C category | |||||
| see common names | |||||||
Geography
| Country: | United States | State/province: | Utah | County: | Millard |
| Coordinates: | 38.8° North, 113.5° West (view map) | ||||
| Paleocoordinates: | 7.4° South, 83.0° West | ||||
| Basis of coordinate: | estimated from map | ||||
| Geographic resolution: | small collection |
Time
| Period: | Ordovician | Epoch: | Early/Lower Ordovician |
| Stage: | Floian | 10 m.y. bin: | Ordovician 2 |
| Key time interval: | Blackhillsian | Trilobite zone: | H |
| Age range of interval: | 473.90000 - 470.00000 m.y. ago |
Stratigraphy
| Formation: | Fillmore Limestone | ||||
| Local section: | Ibex, section H | Regional bed: | 410 ft | ||
| Regional order: | bottom to top | ||||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: Ibexian; Blackhillsian | |||||
Lithology and environment
| Primary lithology: | lithified conglomerate | ||
| Lithology description: flat-pebble; quartz-rich; interbedded w/calcarenite | |||
| Environment: | open shallow subtidal | Tectonic setting: | passive margin |
| Geology comments: carbonate ramp, above wave base | |||
Taphonomy
| Modes of preservation: | body,replaced with silica |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection methods: | bulk,field collection |
| Reason for describing collection: | biostratigraphic analysis |
| Collectors: | L.F. Hintze |
Metadata
| Also known as: | SF 335 | ||
| Database number: | 104120 | ||
| Authorizer: | S. Finnegan | Enterer: | S. Finnegan |
| Modifier: | J. Alroy | Research group: | marine invertebrate |
| Created: | 2011-02-07 12:04:21 | Last modified: | 2011-02-06 19:04:21 |
| Access level: | the public | ||
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 18349. | L.F. Hintze. 1951. Lower Ordovician detailed stratigraphic sections for western Utah. Utah Geological and Mineralogical Survey Bulletin 39:99 p. [A. Miller/A. Miller] |
Secondary references:
| 18329 | L. F. Hintze. 1953. Lower Ordovician trilobites from western Utah and eastern Nevadea. Utah Geological and Mineralogical Survey Bulletin 48:249 p. [A. Miller/A. Miller/P. Novack-Gottshall] |