Locality 412 (Drumcliff Mbr, Choptank Fm): Serravallian, Maryland
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Thecostraca
- Balanomorpha
- Balanidae
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Chesaconcavus chesapeakensis
(Pilsbry 1916)
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original and current combination Balanus concavus chesapeakensis | |||||||
Chesaconcavus santamaria
Zullo 1992
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see common names |
Geography
Country: | United States | State/province: | Maryland | County: | St Marys |
Coordinates: | 38.3° North, 76.4° West (view map) | ||||
Paleocoordinates: | 38.5° North, 73.5° West | ||||
Basis of coordinate: | based on nearby landmark | ||||
Geographic resolution: | outcrop |
Time
Period: | Neogene | Epoch: | Miocene |
Stage: | Serravallian | 10 m.y. bin: | Cenozoic 5 |
Key time interval: | Serravallian | ||
Age range of interval: | 13.82000 - 11.62000 m.y. ago |
Stratigraphy
Geological group: | Chesapeake | Formation: | Choptank | Member: | Drumcliff |
Regional section: | Shattuck | Regional bed: | 17 | ||
Regional order: | bottom to top | ||||
Stratigraphic resolution: | bed | ||||
Stratigraphy comments: Patuxent River, St Marys; Middle Miocene (Serravallian), Drumcliff Mbr, Choptank Formation. Zone 17. |
Lithology and environment
Primary lithology: | medium,shelly/skeletal unlithified sandstone |
Includes fossils? | Y |
Lithology description: Unconsolidated fossiliferous sand. | |
Environment: | offshore |
Geology comments: Open shelf conditions created channel deposits of clean, medium-size sand. |
Taphonomy
Modes of preservation: | body |
Size of fossils: | macrofossils |
Collection methods and comments
Collection methods: | selective quarrying,field collection |
Reason for describing collection: | taxonomic analysis |
Collection method comments: Collected from individuals specimens. Collection of Zullo/UNCW | |
Taxonomic list comments:Exhaustive for Cirripdia. Not complete with respect to molluscan fauna. Type material is reposited in USNM, ANSP, and University of North Carolina, Wilmington. |
Metadata
Also known as: | Patuxent River | ||
Database number: | 51726 | ||
Authorizer: | A. Hendy | Enterer: | A. Hendy |
Modifier: | M. Uhen | Research group: | marine invertebrate |
Created: | 2005-06-14 14:05:10 | Last modified: | 2013-11-25 13:37:23 |
Access level: | the public | Released: | 2005-06-14 14:05:10 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
13777. | 1% 2380 | D. B. Kline. 1997. Systematics and biostratigraphy of Miocene Cirripedia of the Chesapeake Group; Maryland, North Carolina, and Virginia. Unpublished Masters thesis, University of North Carolina, Wilmington [A. Miller/A. Hendy/A. Hendy] |