Gaither Mountain; USGS 8623: Morrowan, Arkansas
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Cephalopoda
- Bactritida
- Bactritidae
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? Bactrites gaitherensis
Gordon 1964
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? Bactrites redactus
Gordon 1964
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Cephalopoda
- Prolecanitida
- Pronoritidae
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Stenopronorites arkansiensis
(Smith 1896)
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recombined as Pseudopronorites arkansiensis | ||||||||||
(1 measurement) | ||||||||||
Cephalopoda
- Goniatitida
- Bisatoceratidae
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Bisatoceras secundum
Miller and Moore 1938
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(2 measurements) | ||||||||||
Cephalopoda
- Goniatitida
- Delepinoceratidae
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Proshumardites morrowanus
Gordon 1964
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(1 measurement) | ||||||||||
Cephalopoda
- Goniatitida
- Reticuloceratidae
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Pygmaeoceras solidum
Gordon 1964
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(3 measurements) | ||||||||||
Cephalopoda
- Goniatitida
- Gastrioceratidae
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Gastrioceras fittsi
Miller and Owen 1944
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recombined as Gastrioceras (Lissogastrioceras) fittsi | ||||||||||
Cephalopoda
- Goniatitida
- Glaphyritidae
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Glaphyrites morrowensis
(Miller and Moore 1938)
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Glaphyrites depressus
Gordon 1964
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Glaphyrites oblatus
Miller and Moore 1938
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recombined as Syngastrioceras oblatum | ||||||||||
Cephalopoda
- Goniatitida
- Schistoceratidae
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Gastrioceras branneri
Smith 1896
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recombined as Branneroceras branneri | ||||||||||
(2 measurements) | ||||||||||
Cephalopoda
- Nautilida
- Liroceratidae
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Coelogasteroceras gracile
Gordon 1964
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(1 measurement) | ||||||||||
Cephalopoda
- Pseudorthocerida
- Pseudorthoceratidae
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Pseudorthoceras knoxense
(McChesney 1859)
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Mooreoceras normale
Miller et al. 1933
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synonym of Pseudorthoceras knoxense | ||||||||||
? Dolorthoceras sp.
Miller 1931
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see common names |
Geography
Country: | United States | State/province: | Arkansas | County: | Boone |
Coordinates: | 36.2° North, 93.2° West (view map) | ||||
Paleocoordinates: | 8.9° South, 31.0° West | ||||
Basis of coordinate: | stated in text | ||||
Geographic resolution: | small collection |
Time
Period: | Carboniferous | Epoch: | Early/Lower Pennsylvanian |
Stage: | Bashkirian | 10 m.y. bin: | Carboniferous 4 |
Key time interval: | Morrowan | ||
Age range of interval: | 318.10000 - 314.60000 m.y. ago |
Stratigraphy
Formation: | Witts Springs | ||||
Stratigraphic resolution: | group of beds | ||||
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 lenses | |
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 2; Henbest, Oct. 6,1938 | ||
Database number: | 43428 | ||
Authorizer: | J. Alroy | Enterer: | C. Simpson |
Modifier: | C. Simpson | Research group: | marine invertebrate |
Created: | 2004-08-13 12:33:29 | Last modified: | 2004-08-13 15:33:30 |
Access level: | the public | Released: | 2004-08-13 12:33:29 |
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] |