Athens formation (overview) (Ordovician of the United States)

Where: Washington County, Virginia (36.8° N, 82.3° W: paleocoordinates 30.2° S, 67.6° W)

• coordinate stated in text

• local area-level geographic resolution

When: Athens Formation, Middle Ordovician (470.0 - 458.4 Ma)

• formation-level stratigraphic resolution

Environment/lithology: marine; lithified, gray, argillaceous shale and limestone

• gray fissile shale with minor light gray thin bedded argillaceous limestone along the pulaski-staunton fault; gray hackly graptolitic shale in se exposures.

Primary reference: C. S., J.r. Bartlett and H. W. Webb. 1971. Geology of the Bristol and Wallace quadrangles, Virginia. Virginia Division of Mineral Resources Report of Investigations 25:1-93 [J. Alroy/M. Sommers/P. Wagner]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 6986: authorized by John Alroy, entered by Mike Sommers on 18.04.2000

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Anthozoa
 Lichenariida - Lichenariidae
? Lichenaria sp.
? Lichenaria sp. Winchell and Schuchert 1895 tabulate coral
Pterobranchia
 Graptoloidea - Climacograptidae
"Climacograptus scharenbergi" = Pseudoclimacograptus scharenbergi
"Climacograptus scharenbergi" = Pseudoclimacograptus scharenbergi Lapworth 1976 climacograptid
 Graptoloidea - Dicranograptidae
? Dicellograptus sp., Nemagraptus gracilis
? Dicellograptus sp. Hopkinson 1871 graptolite
Nemagraptus gracilis Hall 1847 graptolite
 Graptoloidea - Diplograptidae
"Glyptograptus cf. teretiusculus" = Hustedograptus teretiusculus, Amplexograptus confertus, ? Diplograptus sp., Diplograptus foliaceus
"Glyptograptus cf. teretiusculus" = Hustedograptus teretiusculus Hisinger 1840 graptolite
? Diplograptus sp. graptolite
Lingulata
 Lingulida - Obolidae
? Lingulella sp.
? Lingulella sp. Salter 1866