ASC-1. Northeast of Leeds. 09 meters (Carboniferous of the United States)

Where: St. Clair County, Alabama (33.6° N, 86.5° W)

• Paleocoordinates: 34.7° S, 57.2° W (Wright 2013)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Fort Payne Formation, Osagean (352.0 - 343.0 Ma)

• and Ruppel (1979) has correlated the Fort Payne in northern Alabama to the lower Keokuk based on conodont

• bed-level stratigraphic resolution

Environment/lithology: basinal (siliceous); red chert

• Kentucky the Fort Payne Chert is interpreted to be basinal, having filled in a starved basin in the areas of nondeposition from Borden Delta (Lineback, 1966). Gutschick and Sandberg (1983) suggested that the Fort Payne Chert in the southern Appalachians was deposited on a shallow, slowly subsiding, carbonate ramp between the Borden deltaic complex, to the north, and the Ouachita trough, to the west. The Appalachians formed a low-relief landmass that bordered the ramp to the east. Thomas (1972) concluded that the Fort Payne Chert in Alabama was de- posited on a tectonically stable marine shelf.
• dark brown, thin bedded, porous and dense chert with very thin clay laminae

Size class: macrofossils

Primary reference: J. A. Waters and G. L. Bell, Jr. 1986. A new occurrence of Granatocrinus granulatus (Roemer) from the Payne Chert of Alabama. Journal of Paleontology 60(1):177-180 [J. Alroy/D. Mathieson]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 230551: authorized by Pete Wagner, entered by Pete Wagner on 30.06.2023

Creative Commons license: CC0 (CC0)

Taxonomic list

Show authors, comments, and common names
Blastoidea
 Granatocrinida - Granatocrinidae
Granatocrinus granulatus
Granatocrinus granulatus Romer 1851 blastoid