USGS 8770, Ramsey Bottom: Brigantian, Arkansas
collected by H.D. Miser, M. Gordon, T.A. Hendricks 1940
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Cephalopoda
- Goniatitida
- Delepinoceratidae
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Goniatites choctawensis
Shumard 1863
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recombined as Choctawites choctawensis | ||||||||||
Cephalopoda
- Goniatitida
- Neoglyphioceratidae
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Neoglyphioceras newsomi
(Smith 1903)
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recombined as Pachylyroceras newsomi | ||||||||||
(1 measurement) | ||||||||||
Cephalopoda
- Goniatitida
- Goniatitidae
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Goniatites granosus
Portlock 1843
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Cephalopoda
- Goniatitida
- Girtyoceratidae
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Girtyoceras limatum
(Miller and Faber 1892)
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recombined as Eumorphoceras (Sulcogirtyoceras) limatum | ||||||||||
Cephalopoda
- Pseudorthocerida
- Pseudorthoceratidae
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Mitorthoceras perfilosum
Gordon 1960
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Mitorthoceras aff. girtyi
Gordon 1964
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Cephalopoda
- Bactritida
- Bactritidae
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Bactrites carbonarius
Smith 1903
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see common names |
Geography
Country: | United States | State/province: | Arkansas |
Coordinates: | 35.7° North, 91.6° West (view map) | ||
Paleocoordinates: | 13.9° South, 34.7° West | ||
Basis of coordinate: | based on nearby landmark | ||
Geographic resolution: | outcrop |
Time
Period: | Carboniferous | Epoch: | Mississippian |
Stage: | Visean | 10 m.y. bin: | Carboniferous 2 |
Key time interval: | Brigantian | Ammonoid zone: | Goniatites granosus |
Age range of interval: | 336.30000 - 330.90000 m.y. ago |
Stratigraphy
Formation: | Ruddell | ||||
Stratigraphic resolution: | bed | ||||
Stratigraphy comments: Ruddell shale |
Lithology and environment
Primary lithology: | lithified "shale" |
Environment: | marine indet. |
Taphonomy
Modes of preservation: | body |
Size of fossils: | macrofossils |
Collection methods and comments
Reason for describing collection: | taxonomic analysis | ||
Museum repositories: | USNM | ||
Collectors: | H.D. Miser, M. Gordon, T.A. Hendricks | Collection dates: | 1940 |
Metadata
Database number: | 157815 | ||
Authorizer: | M. Clapham | Enterer: | M. Clapham |
Modifier: | M. Clapham | Research group: | marine invertebrate |
Created: | 2014-07-04 20:55:50 | Last modified: | 2014-07-04 20:56:43 |
Access level: | the public | Released: | 2014-07-04 20:55:50 |
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] |