Hintze faunule J-9 from Ibex: Blackhillsian, Utah
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Trilobita
- Phacopida
- Pliomeridae
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Cybelopsis cf. speciosa
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r rank | ||||||
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= Cybelopsis speciosa
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Dean 1989 | ||||||
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Pseudomera cf. insolita
(Poulsen 1927)
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Hintze 1951 | c rank | |||||
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Trilobita
- Proetida
- Bathyuridae
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Goniotelus brighti
Hintze 1953
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c rank | ||||||
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Benthamaspis diminutiva
Hintze 1953
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r rank | ||||||
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Trilobita
- Proetida
- Dimeropygidae
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Dimeropygiella caudanodosa
Ross 1951
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c rank | ||||||
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Trilobita
- Asaphida
- Asaphidae
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Lachnostoma latucelsum
Ross 1951
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a rank | ||||||
| see common names | |||||||
Geography
| Country: | United States | State/province: | Utah |
| Coordinates: | 38.9° North, 113.5° West (view map) | ||
| Paleocoordinates: | 7.4° South, 83.0° West | ||
| Basis of coordinate: | stated in text | ||
| Geographic resolution: | outcrop |
Time
| Period: | Ordovician | Epoch: | Early Ordovician |
| Stage: | Floian | 10 m.y. bin: | Ordovician 2 |
| Key time interval: | Blackhillsian | ||
| Age range of interval: | 473.9 - 470 m.y. ago |
Stratigraphy
| Geological group: | Pogonip | Formation: | Wah Wah |
| Local section: | Section J of Hintze | Local bed: | 51 ft |
| Local order: | bottom to top | ||
| Stratigraphic resolution: | bed |
Lithology and environment
| Primary lithology: | lithified cherty/siliceous grainstone |
| Includes fossils? | Y |
| Lithology description: Calcisiltite,siliceous, ledge forming capped by 6" coarse calcarenite beid which forms ledge in creek bottom. | |
| Environment: | deep subtidal ramp |
| Geology comments: Multiple sources indicate that this was a carbonate dominated ramp, with substantial siliciclastic input, below normal wave base, above storm wave base. | |
Taphonomy
| Modes of preservation: | original silica,replaced with silica |
Collection methods and comments
| Collection excludes: | some macrofossils,some microfossils |
| Collection methods: | field collection |
| Reason for describing collection: | biostratigraphic analysis |
| Taxonomic list comments:The faunal lists in Hintze 1952 are updated versions of those in Hintze 1951 and, so, are used here. | |
Metadata
| Database number: | 63848 | ||
| Authorizer: | A. Miller, M. Hopkins | Enterer: | A. Miller, M. Hopkins |
| Modifier: | A. Miller | Research group: | marine invertebrate |
| Created: | 2006-08-22 12:57:37 | Last modified: | 2006-08-25 11:41:43 |
| Access level: | the public | Released: | 2006-08-22 12:57:37 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 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] |
Secondary references:
| 4045 | W. T. Dean. 1989. Trilobites from the Survey Peak, Outram and Skoki Formations (Upper Cambrian-Lower Ordovician) at Wilcox Pass, Jasper National Park, Alberta). Geological Survey of Canada Bulletin (389)1-141 [M. Patzkowsky/P. Borkow/P. Borkow] | |
| 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] |