Pulaski (Ordovician of the United States)

Where: Tennessee (35.2° N, 87.0° W: paleocoordinates 27.5° S, 62.7° W)

• coordinate based on political unit

• local area-level geographic resolution

When: Fernvale Formation, Richmondian (449.6 - 445.5 Ma)

• Calcarenite bed. The Arnheim Formation is limited to the northwest flank of the Nashville Dome. The overlying Fernvale Formation crops out in a discontinuous belt along the north, west, and south sides of the Central Basin.

• bed-level stratigraphic resolution

Environment/lithology: deep subtidal; shelly/skeletal, silty lime mudstone and red, yellow lime mudstone

• In the Arnheim Formation, micritic limestone contains abundant skeletal material, finely comninuted bioclastics, intraclasts, and silt- and clay-sized particles. Calcarenites characterize the Fernvale Formation. A thin interbedded shale and limestone facies can be recognized at the top of the Fernvale. Brachiopods common in crinoidal biosparite.

Size class: macrofossils

Preservation: original calcite

Primary reference: H. J. Howe. 1988. Articulate brachiopods from the Richmondian of Tennessee. Journal of Paleontology 62(2):204-218 [S. Holland/T. Hanson/J. Alroy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 192099: authorized by Pete Wagner, entered by Pete Wagner on 08.03.2018

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Rhynchonellata
 Orthida - Plaesiomyidae
Plaesiomys proavita
Plaesiomys proavita Winchell and Schuchert 1892