100 yards south of the Negro Cemetery, ½ mile northeast of Friendsville, Concord (Ordovician of the United States)

Where: Tennessee (35.8° N, 84.1° W: paleocoordinates 29.8° S, 70.2° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Hustedograptus teretiusculus graptolite zone, Arline Formation, Chazyan (468.1 - 460.9 Ma)

• this interval falls within the lower part of the Pygodus anserinus Zone and the upper part of the Pygodus serrus Zone.

•... which occur above the Maclurites beds of the Lenoir and interfinger with black shale of the Rich Valley formation.

• formation-level stratigraphic resolution

Environment/lithology: limestone

• .. the characteristic fossils of the Arline formation occur in cobbly and shaly limestone 225 feet thick...

Size class: macrofossils

Reposited in the USNM

Primary reference: G. A. Cooper. 1956. Chazyan and related brachiopods. Smithsonian Miscellaneous Collections 127:1-1245 [P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 186138: authorized by Pete Wagner, entered by Pete Wagner on 15.06.2017

Creative Commons license: CC BY (attribution)

Taxonomic list

Strophomenata
 Billingsellida - Polytoechiidae
 Strophomenida - Plectambonitidae
Isophragma extensum Cooper 1956
 Strophomenida - Sowerbyellidae
"Sowerbyella varicostellata" = Sowerbyella (Sowerbyella) varicostellata
"Sowerbyella varicostellata" = Sowerbyella (Sowerbyella) varicostellata Cooper 1956
 Strophomenida - Leptellinidae
Leptellina tennesseensis Ulrich and Cooper 1936
 Strophomenida - Glyptomenidae
Platymena plana n. gen. n. sp.
Platymena plana n. gen. n. sp. Cooper 1956
 Strophomenida - Christianiidae
Rhynchonellata
 Orthida - Linoporellidae
 Orthida - Paurorthidae
Paurorthis longa Cooper 1956
 Orthida - Orthidae
Taphrorthis emarginata, "Orthambonites blountensis" = Sulevorthis blountensis, "Orthambonites tennesseensis" = Sulevorthis tennesseensis
"Orthambonites blountensis" = Sulevorthis blountensis Cooper 1956
"Orthambonites tennesseensis" = Sulevorthis tennesseensis Cooper 1956
 Orthida - Hesperorthidae