Crystal River Rock Co. Quarry - Bed 12 (Suwannee Lmst): Early/Lower Oligocene, Florida
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Gastropoda
- Turritellidae
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Turritella martinensis
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Turritella vicksburgensis
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Bivalvia
- Cardiida
- Veneridae
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Chione cf. bainbridgensis
Dall 1916
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| recombined as Chione (Chionopsis) bainbridgensis | |||||||
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Echinoidea
- Cassiduloida
- Cassidulidae
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Cassidulus gouldii
(Bouve 1846)
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Lepidocyclinidae
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Lepidocyclina sp.
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| see common names | |||||||
Geography
| Country: | United States | State/province: | Florida | County: | Citrus |
| Coordinates: | 28.9° North, 82.6° West (view map) | ||||
| Paleocoordinates: | 28.9° North, 76.3° West | ||||
| Basis of coordinate: | based on nearby landmark | ||||
| Geographic resolution: | outcrop |
Time
| Period: | Paleogene | Epoch: | Oligocene |
| Stage: | Rupelian | 10 m.y. bin: | Cenozoic 4 |
| Key time interval: | Early/Lower Oligocene | ||
| Age range of interval: | 33.90000 - 27.82000 m.y. ago |
Stratigraphy
| Geological group: | Vicksburg | Formation: | Suwannee Limestone | ||
| Local section: | Crystal River Rock Co. quarry | Local bed: | 114 ft | ||
| Local order: | bottom to top | ||||
| Regional section: | Citrus | ||||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: STRATIGRAPHIC SOUCE: Individual bed (12) within measured section. STRATIGRAPHIC RELATIONS: Suwannee Lmst was erected by Cpple amd Mansfield (1936) for exposures of hard limestone in local region and locally overlies the Crystal River Fm. AGE: Early Oligocene (Rupelian). SPECIFIC STRATIGRAPHY: 1 ft thick limestone in upper portion of 131 ft section, 17 ft below top of section. | |||||
Lithology and environment
| Primary lithology: | concretionary,brown,yellow lithified "limestone" |
| Includes fossils? | Y |
| Lithology description: SPECIFIC LITHOLOGY: Cream to tan, hard, crystalline, nodular, porous limestone with seams of limestone, amd containing many poorly preserved molds. | |
| Environment: | carbonate indet. |
| Geology comments: GENERAL ENVIRONMENT: Environment not specified, but carbonate facies. | |
Taphonomy
| Modes of preservation: | cast,mold/impression |
| Size of fossils: | macrofossils |
| Preservation of anatomical detail: | poor |
Collection methods and comments
| Collection methods: | selective quarrying,field collection |
| Reason for describing collection: | general faunal/floral analysis |
| Collection method comments: SOURCE: Based on field collecting. REPOSITORIES: Unknown repository for molluscs, echinoids and foraminifera, presumably Florida Geological Survey. | |
| Taxonomic list comments:SOURCE: Vernon (1951) for all taxa. COVERAGE: Probably limited for all groups due to poor preservation. NOMENCLATURE: Slightly antiquated for molluscs and echinoids. | |
Metadata
| Database number: | 61122 | ||
| Authorizer: | A. Hendy | Enterer: | A. Hendy | Research group: | marine invertebrate |
| Created: | 2006-05-29 22:22:24 | Last modified: | 2013-11-25 13:37:23 |
| Access level: | the public | Released: | 2006-05-29 22:22:24 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 17557. | H. S. Puri and R.O. Vernon. 1964. Summary of the geology of Florida and a guidebook to the classic exposures. Florida Geological Survey Special Publication 5 [A. Miller/A. Hendy] |