Eggleston Formation, Burkes Garden (Ordovician of the United States)
Where: Tazewell County, Virginia (37.1° N, 81.3° W: paleocoordinates 29.7° S, 61.6° W)
• coordinate estimated from map
• outcrop-level geographic resolution
When: Eggleston Formation, Trentonian (460.9 - 449.5 Ma)
• formation-level stratigraphic resolution
Environment/lithology: gray, calcareous mudstone and argillaceous limestone
• 30 to 115 feet of dark-gray calcareous mudrock, medium-gray argillaceous limestone, dark-brown siltstone, wavy bands of rusty-brown fossiliferous chert, apricot-buff metabentonite, and greenish-gray cuneiform-jointed siliceous mudrock. The cuneiform-jointed beds invariably overlie or underlie the metabentonites.
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 34340: authorized by Steven Holland, entered by Tori Hanson on 27.08.2003