Cliffield Formation, Ward Cove Member, Thompson Valley (upper part) (Ordovician of the United States)

Where: Tazewell County, Virginia (37.1° N, 81.5° W: paleocoordinates 29.6° S, 61.8° W)

• coordinate estimated from map

• local area-level geographic resolution

When: Nidulites pyriformis other zone, Ward Cove Limestone Member (Cliffield Formation), Ashbyan (457.3 - 449.6 Ma)

• Ashbyan or Whiterockian, Nidulites zone, upper part

•

•Darriwillian.

• member-level stratigraphic resolution

Environment/lithology: gray, argillaceous limestone

• Limestone, gray, argillaceous, and shaly; may be nodular.

Size class: macrofossils

Preservation: cast

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 33532: 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
Gastropoda
 Murchisoniina - Lophospiridae
Lophospira perangulata
Lophospira perangulata Hall 1847 snail
(Hall)
 Euomphalina - Lesueurillidae
Eccyliopterus sp.
Eccyliopterus sp. Remelé 1888 snail
Brachiopoda
  -
Brachiopoda indet.
Brachiopoda indet. Cuvier 1805
Willard; [Oxoplecia holstonensis]
Strophomenata
 Orthotetida - Triplesiidae
Oxoplecia holstonensis
Oxoplecia holstonensis Willard 1928
Willard; [Oxoplecia hostonensis]
 Strophomenida - Sowerbyellidae
Sowerbyella cf. delicatula, "Sowerbyella cf. aequistriata" = Sowerbyella (Sowerbyella) aequistriatus
"Sowerbyella cf. aequistriata" = Sowerbyella (Sowerbyella) aequistriatus Willard 1928
(Willard)
Lingulata
 Lingulida - Obolidae
"Lingula cf. nympha" = Ectenoglossa nympha
"Lingula cf. nympha" = Ectenoglossa nympha Billings 1865
Billings
 Siphonotretida - Siphonotretidae
Schizambon cuneatus
Schizambon cuneatus Willard 1928
Willard
Trilobita
 Phacopida - Pterygometopidae
Calliops cf. gracilens, Calliops annulatus
Calliops cf. gracilens trilobite
(Raymond)
Calliops annulatus Raymond 1905 trilobite
(Raymond)
 Trinucleida - Raphiophoridae
Ampyx sp.
Ampyx sp. Dalman 1827 trilobite
[entered as Ampux sp.]
 Asaphida - Asaphidae
Niobe sp., "Homotelus sp." = Isotelus
Niobe sp. Angelin 1851 trilobite
"Homotelus sp." = Isotelus Dekay 1824 trilobite
 Asaphida - Remopleurididae
Remopleurides sp.
Remopleurides sp. Portlock 1843 trilobite
Mastopora
  -
"Nidulites pyriformis" = Mastopora
"Nidulites pyriformis" = Mastopora
Bassler