42-7.12: Furongian, Texas
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Trilobita
- Corynexochida
- Leiostegiidae
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Ptychopleurites amplooculata
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Trilobita
- Ptychopariida
- Elviniidae
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Irvingella burnetensis
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| see common names | |||||||
Geography
| Country: | United States | State/province: | Texas |
| Coordinates: | 30.7° North, 98.3° West (view map) | ||
| Paleocoordinates: | 18.8° South, 94.5° West | ||
| Basis of coordinate: | estimated from map |
Time
| Period: | Cambrian | Epoch: | Furongian |
| 10 m.y. bin: | Cambrian 5 | ||
| Key time interval: | Furongian | Trilobite zone: | Camaraspis |
| Age range of interval: | 497 - 485.4 m.y. ago |
Stratigraphy
| Formation: | Wilberns | ||||
| Local section: | Backbone Ridge | Local bed: | 50 ft | ||
| Local order: | bottom to top | ||||
| Stratigraphy comments: Camaraspis zone is Furongian
Llano uplift | |||||
Lithology and environment
| Primary lithology: | gray lithified "limestone" |
| Includes fossils? | Y |
| Environment: | marine indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection excludes: | some macrofossils |
| Reason for describing collection: | biostratigraphic analysis |
| Collection method comments: Fossils collected from White Ranch Road of the Wilberns limestone; collection 42-7w.12, 50 feet above the base of the formation | |
Metadata
| Database number: | 156281 | ||
| Authorizer: | M. Hopkins | Enterer: | S. Mahmood |
| Modifier: | M. Uhen | Research group: | marine invertebrate |
| Created: | 2014-05-16 13:55:37 | Last modified: | 2018-11-18 09:43:42 |
| Access level: | the public | Released: | 2014-05-16 13:55:37 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 51179. | J. L. Wilson. 1949. The trilobite fauna of the Elvina zone in the Basal Wilberns limestone of Texas. Journal of Paleontology 23(1):25-44 [M. Hopkins/S. Mahmood] |