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0.2 miles southeast of Pratt Ferry (Ordovician of the United States)

Where: Alabama (33.0° N, 87.1° W: paleocoordinates 29.5° S, 72.7° W)

• coordinate estimated from map

When: Pygodus anserinus conodont zone, Pratt Ferry Formation, Chazy (466.0 - 457.5 Ma)

• Shaw (2014): "Located between the Lenoir and Athens formations, the upper part of these beds contains the stratigraphically important Pygodus serrus–Pygodus anserinus conodont zonal boundary (late Darriwilian) (Sweet and Bergström, 1962; Bergström, 1990). Finney (1984) and Bergström (1990) showed that the base of the Nemagraptus gracilis Zone (early Sandbian) lies in the Athens Formation just above the Pratt Ferry beds."

• group of beds-level stratigraphic resolution

Environment/lithology: open shallow subtidal; limestone

• Shaw (2014): "The only depositional interpretation for this locality (Benson and Stock, 1986) assigned the bioclastic Pratt Ferry beds to a ‘‘temporary return to above wave-base deposition’’ in a persistent deepening trend."
• Cooper (1956): “bituminous calcarenite”

Size classes: macrofossils, mesofossils

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 162364: authorized by Pete Wagner, entered by Pete Wagner on 23.09.2014

Creative Commons license: CC BY (attribution)