Catawba Collection 27 (Ordovician of the United States)

Where: Virginia (37.4° N, 80.9° W: paleocoordinates 29.7° S, 61.1° W)

• coordinate based on unpublished field data

• hand sample-level geographic resolution

When: Martinsburg Formation, Mohawkian (457.3 - 451.0 Ma)

• Based on Kreisa (1980, VA Tech Ph.D. dissertation), probably Trenton equivalent

• group of beds-level stratigraphic resolution

Environment/lithology: deep subtidal shelf; lithified, gray, calcareous shale and lithified, shelly/skeletal, gray, argillaceous packstone

• 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

•

Size classes: macrofossils, mesofossils

Primary reference: 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]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 85598: authorized by Karen Layou, entered by Karen Layou on 12.01.2009

Creative Commons license: CC BY (attribution)

Taxonomic list

• Craniops-Dalmanella-Clams community
Show authors, comments, and common names
Bivalvia
  -
Bivalvia indet.
Bivalvia indet. Linnaeus 1758 clam
 Ostreida - Pterineidae
Pterinea sp.
Pterinea sp. Goldfuss 1832 oyster
 Nuculanida - Malletiidae
Palaeoneilo sp.
Palaeoneilo sp. Hall and Whitfield 1869 clam
 Solemyida - Ctenodontidae
Ctenodonta pulchella
Gastropoda
 Bellerophontida - Bucaniidae
Bucania sp.
Bucania sp. Hall 1847 snail
 Bellerophontida - Plectonotidae
Plectonotus sp.
Plectonotus sp. Clarke 1899 snail
Stenolaemata
 Trepostomida - Monticuliporidae
Prasopora sp.
Prasopora sp. Nicholson and Etheridge 1877
Rhynchonellata
 Orthida - Dalmanellidae
Dalmanella bassleri
Dalmanella bassleri Foerste 1909
Strophomenata
 Strophomenida - Sowerbyellidae
Sowerbyella rugosa
Craniata
 Craniopsida - Craniopsidae
Craniops sp.
Craniops sp. Hall 1859
Trilobita
  -
Trilobita indet.
Trilobita indet. Walch 1771 trilobite
"Unidentified trilobite fragments"
 Phacopida - Pterygometopidae
Eomonorachus sp.
Eomonorachus sp. Delo 1935 trilobite
 Asaphida - Asaphidae
Isotelus sp.
Isotelus sp. Dekay 1824 trilobite
 Trinucleida - Trinucleidae
Cryptolithus sp.
Cryptolithus sp. Green 1832 trilobite