Clifton (Ordovician of the United States)

Where: Wayne County, Tennessee (35.4° N, 88.0° W: paleocoordinates 27.1° S, 65.3° W)

• local area-level geographic resolution

When: Arnheim Formation, Maysvillian (452.0 - 449.5 Ma)

• Richmondian

• formation-level stratigraphic resolution

Environment/lithology: lithified, shelly/skeletal, gray packstone and mudstone

• Geological information from field notes of S.M. Holland and M.E. Patzkowsky
• predominantly thin to very thin beds of skeletal packstone, interbedded with thin to very thin beds of calcareous gray mudstone

Size class: macrofossils

Preservation: original calcite

Primary reference: C. W. Wilson. 1949. Pre-Chattanooga stratigraphy in Central Tennessee. Tennessee Division of Geology Bulletin 56:1-415 [S. Holland/S. Holland]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 5391: authorized by Steven Holland, entered by Steven Holland on 29.09.1999, edited by Pete Wagner

Creative Commons license: CC BY (attribution)

Taxonomic list

• Wilson reprints list from Foerste (1903)
 Strophomenida - Rafinesquinidae
 Rhynchonellida - Rhynchotrematidae
 Orthida - Dalmanellidae
Dalmanella sp. Hall and Clarke 1892
 Orthida - Plaesiomyidae
 Euomphalina - Platyceratidae
Cyclonema bilix Conrad 1842 snail
 Tryblidiida - Tryblidiidae
Helcionopsis striata Ulrich and Scofield 1897
 Stauriida - Columnariidae