Locality 412 (Drumcliff Mbr, Choptank Fm): Serravallian, Maryland

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Thecostraca - Balanomorpha - Balanidae
Chesaconcavus chesapeakensis (Pilsbry 1916)
original and current combination Balanus concavus chesapeakensis
Chesaconcavus santamaria Zullo 1992
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% 2380D. 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 Unpublished Masters thesis, University of North Carolina, Wilmington [A. Miller/A. Hendy/A. Hendy]