Cliffield Formation, Ward Cove Limestone Member, Tazewell County (Ordovician of the United States)

Where: Tazewell County, Virginia (37.0° N, 81.0° W: paleocoordinates 30.0° S, 61.5° W)

• coordinate estimated from map

• local area-level geographic resolution

When: Ward Cove Limestone Member (Cliffield Formation), Caradoc (458.4 - 449.5 Ma)

• Ashbyan or Whiterockian

• member-level stratigraphic resolution

Environment/lithology: gray limestone

• Limestone, light, buff, or brownish gray, medium- to coarse-grained with some fine-grained inclusions, some with pinkish tinge or mottled reddish tan and gray, otten granular.

Size class: macrofossils

Primary reference: B. N. Cooper and C. E. Prouty. 1943. Stratigraphy of the Lower Middle Ordovician of Tazewell County, Virginia. Bulletin of the Geological Society of America 54:819-886 [S. Holland/T. Hanson/T. Hanson]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 33528: authorized by Steven Holland, entered by Tori Hanson on 01.08.2003

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Hormogoneae
 Oscillatoriales - Girvanellaceae
Girvanella sp.
Girvanella sp. Nicholson and Etheridge 1878
Rhodophyceae
  - Solenoporaceae
Solenopora sp.
Solenopora sp. Dybowski 1877
Chlorophyceae
  - Receptaculitidae
Receptaculites sp.
Receptaculites sp. Defrance 1827
Demospongiae
 Lithistida - Streptosolenidae
Eospongia varians
Eospongia varians demosponge
Billings
Cephalopoda
 Actinocerida - Gonioceratidae
Gonioceras sp.
Gonioceras sp. Hall 1847
Stenolaemata
 Trepostomida - Monticuliporidae
Monticulipora sp.
Monticulipora sp. d'Orbigny 1850
  - Phylloporinidae
Chasmatopora sp.
Chasmatopora sp. Eichwald 1860
Rhynchonellata
 Orthida - Plaesiomyidae
Dinorthis atavoides
Dinorthis atavoides Willard 1928
Willard
 Atrypida - Anazygidae
Zygospira sp.
Zygospira sp. Hall 1862
Strophomenata
 Orthotetida - Triplesiidae
Oxoplecia cf. holstonensis
Oxoplecia cf. holstonensis Willard 1928
Willard
Trilobita
 Lichida - Lichidae
"Acrolichas minganensis" = Amphilichas minganensis
"Acrolichas minganensis" = Amphilichas minganensis Billings 1865 trilobite
(Billings)
 Asaphida - Asaphidae
"Homotelus sp." = Isotelus
"Homotelus sp." = Isotelus Dekay 1824 trilobite
 Corynexochida - Illaenidae
Illaenus sp.
Illaenus sp. Dalman 1827 trilobite