Moccasin Formation, Wardell (red mudrock) (Ordovician of the United States)

Where: Tazewell County, Virginia (37.0° N, 81.8° W: paleocoordinates 29.5° S, 62.0° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Moccasin Formation, Caradocian (460.9 - 449.5 Ma)

• Turinian

• formation-level stratigraphic resolution

Environment/lithology: gray, red, calcareous mudstone and gray, calcareous limestone

• 250 to 400 feet of maroon-drab, brick-red, buff-gray, and olive-drab mudrock and siltstone, waxy red shale and metabentonite, bluish-gray calcilutyte, and drab-gray argillaceous limestone. Most of the beds are calcareous. Most of the mudrocks are mud-cracked, and lenses of sliver breccia formed by slight reworking of desiccated sediment occur.

Size class: macrofossils

Primary reference: B. N. Cooper and C. E. Prouty. 1943. Stratigraphy of the Lower Middle Ordovician of Tazewell County, Virginia. Bulletin of the Geological Society of America 54:819-886 [S. Holland/T. Hanson/T. Hanson]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 34336: authorized by Steven Holland, entered by Tori Hanson on 27.08.2003

Creative Commons license: CC BY (attribution)

Taxonomic list

Camarocladia sp.
Camarocladia tubes
Tetradium fibratum
  - Florideophyceae
"Tetradium cf. fibratum" = Prismostylus fibratum
"Tetradium cf. fibratum" = Prismostylus fibratum Safford 1856