Cow Creek; USGS 15788: Morrowan, Arkansas
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Cephalopoda
- Prolecanitida
- Pronoritidae
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Stenopronorites arkansiensis
(Smith 1896)
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recombined as Pseudopronorites arkansiensis | |||||||
Cephalopoda
- Bactritida
- Bactritidae
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? Bactrites gaitherensis
Gordon 1964
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see common names |
Geography
Country: | United States | State/province: | Arkansas | County: | Searcy |
Coordinates: | 35.8° North, 93.1° West (view map) | ||||
Paleocoordinates: | 9.2° South, 31.1° West | ||||
Basis of coordinate: | stated in text | ||||
Geographic resolution: | small collection |
Time
Period: | Carboniferous | Epoch: | Pennsylvanian |
Stage: | Bashkirian | 10 m.y. bin: | Carboniferous 4 |
Key time interval: | Morrowan | ||
Age range of interval: | 323.20000 - 318.40000 m.y. ago |
Stratigraphy
Formation: | Witts Springs | ||||
Stratigraphic resolution: | bed | ||||
Stratigraphy comments: The Hale formation and the Bloyd shale can be differentiated and most of their subdivisions recognized as far southeast as the northwest part of Newton County, in the vicinity of Compton. Southeast of this area, there is a gradual increase in sand content and a thickening of the Marrow section. In this region the upper part of the Hale formation and the various subdivisions recognized in Washington County cannot be differentiated. East of Compton, therefore, or for practical purposes east of Madison County, the rocks of Morrow age between the Imo formation below and the Atoka formation above are called the Witts Springs formation |
Lithology and environment
Primary lithology: | lithified "limestone" |
Includes fossils? | Y |
Lithology description: Limestone | |
Environment: | shallow subtidal indet. |
Taphonomy
Modes of preservation: | body |
Size of fossils: | macrofossils |
Collection methods and comments
Collection methods: | field collection |
Reason for describing collection: | taxonomic analysis |
Museum repositories: | USGS |
Metadata
Also known as: | Locality Mu 5; Glick and Frezon, Apr. 22, 1953 | ||
Database number: | 43436 | ||
Authorizer: | J. Alroy | Enterer: | C. Simpson |
Modifier: | C. Simpson | Research group: | marine invertebrate |
Created: | 2004-08-13 13:21:43 | Last modified: | 2004-08-13 16:21:43 |
Access level: | the public | Released: | 2004-08-13 13:21:43 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
11419. | M. Gordon. 1964. Carboniferous Cephalopods of Arkansas. United States Geological Survey Professional Paper 460:1-322 [J. Alroy/C. Simpson/M. Clapham] |