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: 8.1° S, 111.3° W (Wright 2013)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Hustedograptus teretiusculus graptolite zone, Arline Formation, Chazyan (471.3 - 457.3 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: CC0 (CC0)

Taxonomic list

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