Governor Run, south, Zone 17: Serravallian, Maryland

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Malacostraca - Decapoda
Cancroidea indet. Latreille 1802
Martin 1904
Echinoidea - Clypeasteroida - Abertellidae
Abertella aberti (Conrad 1842)
Uhen 2007
Chondrichthyes - Carcharhiniformes - Carcharhinidae
Galeocerdo triqueter Eastman 1904
Uhen 2007
Mammalia - Carnivora - Phocidae
Koretsky 2001
Mammalia - Cetacea
Uhen 2007
Mammalia - Cetacea - Platanistidae
Uhen 2007
Godfrey and Lambert 2023 1 specimen
see common names

Geography
Country:United States State/province:Maryland County:Calvert
Coordinates: 38.5° North, 76.5° West (view map)
Paleocoordinates:40.0° North, 70.4° West (Wright 2013)
Basis of coordinate:estimated from map
Geographic resolution:outcrop
Time
Period: Neogene Epoch: Miocene
Stage: Serravallian 10 m.y. bin: Cenozoic 5
Key time interval: Serravallian
Age range of interval: 13.82 - 11.63 m.y. ago
Stratigraphy
Geological group:Chesapeake Formation:Choptank Member:Drumcliff
Regional section:Shattuck Regional bed:17
Regional order:bottom to top
Lithology and environment
Primary lithology:yellow sandstone
Includes fossils?Y
Lithology description: yellowish sand
Environment:shoreface
Geology comments: Mollusk-dense pale yellow-brown to pale orange well-sorted sand; sub-tropical to temperate, in a current-swept channel-like basin, area not far from shore, bay, short-term eustatic transgression events, long-term regression trend
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Reason for describing collection:general faunal/floral analysis
Metadata
Also known as:Calvert Beach north, Matoaka Cottages
Database number:70843
Authorizer:M. Uhen Enterer:M. Uhen
Modifier:G. Varnham Research group:marine invertebrate,vertebrate
Created:2007-04-09 14:41:37 Last modified:2025-02-22 15:12:02
Access level:the public Released:2007-04-09 14:41:37
Creative Commons license:CC0
Reference information

Primary reference:
23697. G. B. Shattuck. 1904. Geological and paleontological relations, with a review of earlier investigations. Maryland Geological Survey Miocene Text xxxiii-clv [M. Uhen/M. Uhen]

Secondary references:

29210 J. W. Durham. 1955. Classification of clypeasteroid echinoids. California University Publications in Geological Sciences 31:73-198 [A. Hendy/A. Hendy]
85660 S. J. Godfrey and O. Lambert. 2023. Miocene Toothed Whales (Odontoceti) from Calvert Cliffs, Atlantic Coastal Plain, USA. Smithsonian Contributions to Paleobiology 107:29-186 [M. Uhen/M. Uhen]
17253 I. Koretsky. 2001. Morphology and systematics of Miocene Phocinae (Mammalia: Carnivora) from Paratethys and the North Atlantic region. Geologica Hungarica Series Palaeontologica 54:1-109 [M. Uhen/M. Uhen]
23767 G. C. Martin. 1904. Malacostraca. Maryland Geological Survey Miocene(Text):94 [M. Uhen/M. Uhen/M. Uhen]
24251 M. D. Uhen. 2007. USNM Chesapeake Group Cetacean Collection Data. [M. Uhen/M. Uhen]
32709 L. W. Ward and G. W. Andrews. 2008. Stratigraphy of the Calvert, Choptank, and St. Marys Formations (Miocene) in the Chesapeake Bay Area, Maryland and Virginia. Virginia Museum of Natural History Memoir 1-169 [M. Uhen/M. Uhen]