Pratt Ferry (Ordovician of the United States)

Where: Alabama (33.0° N, 87.1° W: paleocoordinates 29.6° S, 73.3° W)

• coordinate estimated from map

When: Pygodus anserinus conodont zone, Pratt Ferry Formation, Darriwilian (467.3 - 458.4 Ma)

• Was entered as: Porterfield Stage, lower Mohawkian after Sweet (1962).

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 BMNH

Primary reference: V. Jaanusson and M. G. Bassett. 1993. Orthambonites and related Ordovician brachiopod genera. Palaeontology 36(1):21-63 [B. Kröger/B. Kröger]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 160496: authorized by Björn Kröger, entered by Björn Kröger on 23.08.2014, edited by Pete Wagner

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Rhynchonellata
 Orthida - Orthidae
"Sivorthis tenuicostata" = Sivorthis tenuicostatus
"Sivorthis tenuicostata" = Sivorthis tenuicostatus Cooper 1956
Trilobita
 Phacopida - Encrinuridae
Bevanopsis buttsi
Bevanopsis buttsi Cooper 1953 trilobite