Catawba Collection 31: Mohawkian, Virginia

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Trilobita - Asaphida - Asaphidae
Isotelus sp. Dekay 1824
Plants 1977 1 individual
Craniata - Craniopsida - Craniopsidae
Craniops sp. Hall 1859
Plants 1977 18 individuals
Strophomenata - Strophomenida - Sowerbyellidae
Sowerbyella rugosa (Meek 1873)
Plants 1977 2 individuals
Strophomenata - Strophomenida - Rafinesquinidae
Rafinesquina alternata (Conrad 1838)
Plants 1977 3 individuals
Rhynchonellata - Orthida - Dalmanellidae
Dalmanella bassleri Foerste 1909
Plants 1977 11 individuals
Stenolaemata
Stenolaemata indet. Borg 1926
Plants 1977 3 individuals
Bivalvia - Nuculanida - Cucullellidae
Nuculites sp. Conrad 1841
Plants 1977 1 individual
Bivalvia - Solemyida - Ctenodontidae
Ctenodonta pulchella
Plants 1977 8 individuals
Bivalvia - Cyrtodontida - Cyrtodontidae
Cyrtodonta sp. Billings 1858
Plants 1977 2 individuals
Bivalvia - Modiomorphida - Modiomorphidae
Modiolopsis informal sp. 1 Hall 1847
Plants 1977 22 individuals
Cephalopoda
Cephalopoda informal group 1
Plants 1977 1 individual
Crinoidea
Crinoidea (informal group 2) indet. Miller 1821
Plants 1977 1 individual
see common names

Geography
Country:United States State/province:Virginia
Coordinates: 37.4° North, 80.9° West (view map)
Paleocoordinates:29.7° South, 61.1° West
Basis of coordinate:unpublished field data
Geographic resolution:hand sample
Time
Period:Ordovician Epoch:Late/Upper Ordovician
10 m.y. bin:Ordovician 4
Key time interval:Mohawkian
Age range of interval:457.50000 - 452.50000 m.y. ago
Stratigraphy
Formation:Martinsburg
Stratigraphic resolution:group of beds
Stratigraphy comments: Based on Kreisa (1980, VA Tech Ph.D. dissertation), probably Trenton equivalent
Lithology and environment
Primary lithology:gray lithified calcareous "shale"
Secondary lithology:shelly/skeletal,gray lithified argillaceous packstone
Lithology description: Medium gray calcareous shale and medium dark gray argillaceous limestone, laminated to think bedded; thin skeletal packstones and wackestones in upper 300 feet, increasing in thickness and abundance upward
Environment:deep subtidal shelf
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils,mesofossils
Collection methods and comments
Reason for describing collection:paleoecologic analysis
Taxonomic list comments:Craniops-Dalmanella-Clams community
Metadata
Database number:85602
Authorizer:K. Layou Enterer:K. Layou
Modifier:K. Layou Research group:marine invertebrate
Created:2009-01-12 12:29:16 Last modified:2009-01-14 15:25:30
Access level:the public Released:2009-01-12 12:29:16
Creative Commons license:CC BY
Reference information

Primary reference:

28962. K. M. Layou. 2009. Ecological restructuring after extinction: the Late Ordovician (Mohawkian) of the eastern United States. Palaios 24:118-128 [K. Layou/K. Layou]

Secondary references:

25782 H. F. Plants. 1977. Paleoecology of the Martinsburg Formation at Catawba Mountain, Virginia. Virginia Polytechnic Institute, Blacksburg, VA [P. Novack-Gottshall/P. Hearn/P. Novack-Gottshall]