USGS Loc. 16917 - Benton [Clayton Fm]: Danian, Alabama
collected by Gardner, Smidt
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Echinoidea
- Nucleolitidae
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Rhopostoma cruciferum
(Morton 1830)
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| recombined as Plagiochasma cruciferum | |||||||
| see common names | |||||||
Geography
| Country: | United States | State/province: | Alabama | County: | Benton |
| Coordinates: | 34.6° North, 92.6° West (view map) | ||||
| Paleocoordinates: | 38.5° North, 71.9° West | ||||
| Basis of coordinate: | based on nearby landmark | ||||
| Geographic resolution: | outcrop |
Time
| Period: | Paleogene | Epoch: | Paleocene |
| Stage: | Danian | 10 m.y. bin: | Cenozoic 1 |
| Key time interval: | Danian | ||
| Age range of interval: | 66.00000 - 61.60000 m.y. ago |
Stratigraphy
| Geological group: | Midway | Formation: | Clayton | ||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: LITHOSTRATIGRAPHY: Not stated in text; assumed to be from Clayton Fm, on the basis of other local collections. AGE: Paleocene in test; assumed to be Danian on the basis of age of other local collections. STRATIGRAPHIC REPORTED: From unknown position in local section. | |||||
Lithology and environment
| Primary lithology: | not reported |
| Environment: | coastal indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection excludes: | some macrofossils |
| Collection methods: | surface (float),surface (in situ),survey of museum collection |
| Reason for describing collection: | taxonomic analysis |
| Museum repositories: | USNM |
| Collectors: | Gardner, Smidt |
| Collection method comments: COLLECTOR: J. Gardner, R. Smidt. REPOSITORY: USNM (formerly USGS). | |
| Taxonomic list comments:COVERAGE: Limited to echinoidea, but molluscs are probably present. NOMENCLATURE: Authoritative publication with species-resolution identifications, but somewhat antiquated nomenclature. | |
Metadata
| Database number: | 155921 | ||
| Authorizer: | A. Hendy | Enterer: | A. Hendy | Research group: | marine invertebrate |
| Created: | 2014-05-04 13:46:30 | Last modified: | 2014-05-04 13:46:30 |
| Access level: | the public | Released: | 2014-05-04 13:46:30 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 32912. | C. W. Cooke. 1959. Cenozoic echinoids of eastern United States. United States Geological Survey Professional Papers 321:1-106 [L. Villier/L. Villier/M. Hopkins] |