Benbolt Formation, Burkes Garden 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: Burkes Garden Limestone Member (Benbolt Formation), Caradocian (460.9 - 449.5 Ma)

• Ashbyan

• member-level stratigraphic resolution

Environment/lithology: yellow, argillaceous, calcareous limestone

• Nodular limestone, coarse-grained, argillaceous, calcareous, weathers light buff.

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 34169: authorized by Steven Holland, entered by Tori Hanson on 20.08.2003

Creative Commons license: CC BY (attribution)

Taxonomic list

Girvanella
  -
Girvanella sp. Nicholson and Etheridge 1878
unclassified
  -
Stenolaemata
  - Phylloporinidae
Chasmatopora sp. Eichwald 1860
 Cryptostomata - Ptilodictyidae
Phaenopora sp. Hall 1851
 Cryptostomata - Escharoporidae
Graptodictya sp. Ulrich 1882
 Cryptostomida -
Rhinidictya sp. Ulrich 1882
Rhombifera
 Caryocystitidacea - Echinosphaeritidae
Echinosphaerites aurantium Gyllenhaal 1772
(Gyllenhal)
Strophomenata
 Strophomenida - Sowerbyellidae
 Strophomenida - Rafinesquinidae
"Strophomena tennesseensis" = Rhipidomena tennesseensis
"Strophomena tennesseensis" = Rhipidomena tennesseensis Willard 1928
Willard
 Strophomenida - Strophomenidae
Oepikina "minnesotensis", "? Rafinesquina cf. obsoleta" = Dactylogonia obsoleta, "? Leptaena aff. palustris" = Dactylogonia palustris
Oepikina "minnesotensis" Winchell 1881
(Winchell)
"? Rafinesquina cf. obsoleta" = Dactylogonia obsoleta Butts 1926
Butts
"? Leptaena aff. palustris" = Dactylogonia palustris Willard 1928
Willard
Rhynchonellata
 Orthida - Paurorthidae
Paurorthis sp. Schuchert and Cooper 1931
 Orthida - Glyptorthidae
Glyptorthis bellarugosa Conrad 1843
(Conrad)
 Orthida - Plaesiomyidae
Multicostella platys Billings 1859
(Billings)
Valcourea sp. Raymond 1911
"Dinorthis cf. quadriplicata" = Dinorthis transversa Willard 1928
Willard
Dinorthis interstriata Willard 1928
Willard
 Orthida - Plectorthidae
"Mimella superba" = Mimella globosa
"Mimella superba" = Mimella globosa Willard 1928
Butts
Demospongea
 Lithistida - Streptosolenidae
Eospongia varians demosponge
Billings
Tetradium
  -
Tetradium sp. Dana 1846
Rhodophyceae
  - Solenoporaceae