0.5 miles north of Pelham (Ordovician of the United States)

Where: Shelby County, Alabama (33.3° N, 86.8° W: paleocoordinates 29.7° S, 74.0° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Pygodus serra conodont zone, Little Oak Formation, Chazyan (470.0 - 457.3 Ma)

• Chert beds; Climacograptus bicornis

• group of beds-level stratigraphic resolution

Environment/lithology: cherty/siliceous limestone

Size classes: macrofossils, mesofossils

Preservation: replaced with silica

Reposited in the USNM

Primary reference: C. Butts. 1926. The Paleozoic rocks. Geological Survey Alabama, Special Report 14:41-230 [P. Wagner/P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 100250: authorized by Pete Wagner, entered by Pete Wagner on 03.12.2010

Creative Commons license: CC BY (attribution)

Taxonomic list

Gastropoda
 Murchisoniina - Eotomariidae
"Pleurotomaria euconica n. sp." = Clathrospira euconica
"Pleurotomaria euconica n. sp." = Clathrospira euconica Butts 1926 snail
 Bellerophontida - Temnodiscidae
"Oxydiscus cf. subacutus" = Alaskadiscus subacutus
"Oxydiscus cf. subacutus" = Alaskadiscus subacutus Ulrich and Scofield 1897 snail
 Bellerophontida - Plectonotidae
Tetranota cf. obsoleta Ulrich and Scofield 1897 snail
 Euomphalina - Raphistomatidae
Raphistoma pelhamensis n. sp. Butts 1926 snail
 Euomphalina - Macluritidae
Maclurites sp. Le Sueur 1818 snail
Rhynchonellata
 Orthida - Glyptorthidae
"Glyptorthis concinnula n. sp." = Glyptorthis crispa
"Glyptorthis concinnula n. sp." = Glyptorthis crispa M'Coy 1846
Strophomenata
 Billingsellida - Polytoechiidae
Eremotoechia alabamensis n. sp. Cooper 1956