362-i. Cahaba Valley, south of New Hope Church, 7 miles north Pelham (Ordovician of the United States)

Where: Shelby County, Alabama (33.4° N, 86.8° W: paleocoordinates 29.3° S, 79.8° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Oepikodus communis conodont zone, Odenville Formation, Blackhillsian (474.9 - 470.0 Ma)

• formation-level stratigraphic resolution

Environment/lithology: dolomitic limestone

• Thin lower unit dominated by mottled dolomitic limestone and an upper unite composed of stylonodular fossiliferous limestone. The limestone in the lower unit is medium dark gray to dark gray, thick bedded to massive, micritic (skeletal wackestone), and contains abundant irregular mottled areas composed of light-greenish-gray, finely crystaline dolomite and dolomitic limestone.

•

•This grades upward into dark-gray, thick-bedded, fossiliferous dolomitic limestone (skeletal wackestone) characterized by well-developed stylonodular laminae.

Size classes: macrofossils, mesofossils

Preservation: replaced with silica

Primary reference: E. L. Yochelson and C.R. Jones. 1968. Teiichispira, a new early Ordovician gastropod genus. United States Geological Survey Professional Paper 613(B):1-15 [P. Wagner/P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 100254: authorized by Pete Wagner, entered by Pete Wagner on 04.12.2010, edited by Björn Kröger

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Cephalopoda
 Ellesmerocerida - Protocycloceratidae
Catoraphiceras foersteri2
 Dissidocerida - Troedssonellidae
Buttsoceras adamsi2
Buttsoceras adamsi2 Butts 1926
a few specimens
Gastropoda
 Euomphalina - Macluritidae
Teiichispira odenvillensis
Rostroconchia
 Conocardiida - Eopteriidae
Eopteria richardsoni1
Eopteria richardsoni1 Billings 1865
1Pojeta and Runnegar 1976; 2Ulrich et al. 1944