Locality 405 (Conoy Mbr, St Marys Fm): Late/Upper Miocene, Maryland
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Thecostraca
- Balanomorpha
- Balanidae
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Chesaconcavus sp.
Zullo 1992
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Chesaconcavus cf. myosulcatus
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, 74.6° West | ||||
| Basis of coordinate: | based on nearby landmark | ||||
| Geographic resolution: | outcrop |
Time
| Period: | Neogene | Epoch: | Miocene |
| 10 m.y. bin: | Cenozoic 6 | ||
| Key time interval: | Late/Upper Miocene | ||
| Age range of interval: | 11.63000 - 5.33300 m.y. ago |
Stratigraphy
| Geological group: | Chesapeake | Formation: | St Marys | Member: | Conoy |
| Regional section: | Shattuck | Regional bed: | 20 | ||
| Regional order: | bottom to top | ||||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: Drum Point, Chesapeake Bay; Upper Miocene (Tortonian), Conoy beds, St Marys Formation, Zones 20. Samples taken from Zone 20, approximately 2.0 m below the "Turritella Zone". AGE: Late Miocene (equivalent to Tortonian) according to Ward (1992). | |||||
Lithology and environment
| Primary lithology: | mudstone |
| Includes fossils? | Y |
| Lithology description: Dominantly a dark mud. | |
| Environment: | estuary/bay |
| Geology comments: Back-barrier and shallow inner-bay conditions, punctuated by open shelf (shelly sand) intervals | |
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 bulk samples and individuals specimens. | |
| 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: | Drum Point | ||
| Database number: | 51730 | ||
| Authorizer: | A. Hendy | Enterer: | A. Hendy |
| Modifier: | A. Hendy | Research group: | marine invertebrate |
| Created: | 2005-06-14 14:19:46 | Last modified: | 2013-11-25 13:37:23 |
| Access level: | the public | Released: | 2005-06-14 14:19:46 |
| 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] |