A-9: Skullrockian, Utah
collected by L.F. Hintze
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Trilobita
- Proetida
- Hystricuridae
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Hystricurus genalatus
Ross 1951
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Hintze 1953 | A category | |||||
| recombined as Genalaticurus genalatus | |||||||
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Hystricurus politus
Ross 1951
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Hintze 1953 | A category | |||||
| recombined as Politicurus politus | |||||||
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Trilobita
- Asaphida
- Asaphidae
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Bellefontia ibexensis
Hintze 1953
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Hintze 1953 | C category | |||||
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Trilobita
- Asaphida
- Nileidae
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Symphysurina globocapitella
Hintze 1953
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Hintze 1953 | R category | |||||
| see common names | |||||||
Geography
| Country: | United States | State/province: | Utah | County: | Millard |
| Coordinates: | 39.5° North, 113.4° West (view map) | ||||
| Paleocoordinates: | 6.5° South, 84.6° West | ||||
| Basis of coordinate: | estimated from map | ||||
| Geographic resolution: | small collection |
Time
| 10 m.y. bin: | Cambrian-Ordovician | ||
| Key time interval: | Skullrockian | Trilobite zone: | B |
| Age range of interval: | 487.50000 - 482.00000 m.y. ago |
Stratigraphy
| Formation: | House Limestone | ||||
| Local section: | Ibex, section A | Regional bed: | 450 ft | ||
| Regional order: | bottom to top | ||||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: IbexianSkullrockian | |||||
Lithology and environment
| Primary lithology: | lithified "limestone" | ||
| Lithology description: muddy; grey; quartz-rich; cherty | |||
| 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 476 | ||
| Database number: | 104160 | ||
| 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] |