City Wide Limestone Quarry (Loc. 1): Khamovnikian, Nebraska
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Crinoidea
- Dendrocrinida
- Cromyocrinidae
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Parethelocrinus variabilis
Strimple 1949
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| classification uncertain | ||||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Nebraska | County: | Sarpy |
| Coordinates: | 41.1° North, 96.0° West (view map) | ||||
| Paleocoordinates: | 0.5° South, 27.2° West | ||||
| Basis of coordinate: | stated in text |
Time
| Period: | Carboniferous | Epoch: | Pennsylvanian |
| Stage: | Kasimovian | 10 m.y. bin: | Carboniferous 5 |
| Key time interval: | Khamovnikian | Conodont zone: | Streptognathodus cancellosus |
| Age range of interval: | 305.8 - 304.8 m.y. ago |
Stratigraphy
| Geological group: | Kansas City | Formation: | Swope Limestone | Member: | Bethany Falls Limestone |
| Stratigraphy comments: Bronson Subgroup, Mid Kasimovian, Khamovnikin Substage from Russian Platform | |||||
Lithology and environment
| Primary lithology: | "shale" |
| Environment: | marine indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | mesofossils |
Collection methods and comments
| Reason for describing collection: | taxonomic analysis |
| Museum repositories: | USNM |
Metadata
| Database number: | 124484 | ||
| Authorizer: | J. Alroy | Enterer: | B. Mamo |
| Modifier: | B. Mamo | Research group: | marine invertebrate |
| Created: | 2012-02-16 13:38:03 | Last modified: | 2012-03-07 21:10:30 |
| Access level: | the public | Released: | 2012-02-16 13:38:03 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 40104. | R. K. Pabian and W. J. Rushlau. 2002. Taphonomic Analysis and Systematic Descriptions of Some Late Pennsylvanian and Early Permian Crinoids from Southeastern Nebraska, Eastern Kansas and Southwestern Iowa. Nebraska Geological Survey Paper Geological Survey Papers 20:1-45 [J. Alroy/B. Mamo/P. Wagner] |