Burkes Garden (lower part) (Ordovician of the United States)

Also known as Cliffield Formation, Peery Limestone Member, Burkes Garden (lower part)

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: Peery Limestone Member (Cliffield Formation), Ashbyan (457.3 - 449.6 Ma)

• Ashbyan, lower part of Lophospira zone

• member-level stratigraphic resolution

Environment/lithology: black, gray, argillaceous limestone

• Dark bluish-gray to black fine-grained argillaceous limestone. Chert is abundant. Waxy seams of silty clay and streaks of waxy bituminous material project from weathered surfaces and give the rock a nodular appearance. One of its most distinctive features is the ash-gray weathering residue, in which many well-preserved ostracodes appear. Intercalated beds of calcilutyte are common near the top.

Size classes: macrofossils, microfossils

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 33548: authorized by Steven Holland, entered by Tori Hanson on 02.08.2003

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Strophomenata
 Strophomenida - Strophomenidae
"Strophomena tenuitesta" = Rhipidomena tenuitesta
"Strophomena tenuitesta" = Rhipidomena tenuitesta Willard 1928
Willard
 Strophomenida - Syndielasmatidae
Sowerbyites sp.
Sowerbyites sp. Teichert 1937
 Strophomenida - Sowerbyellidae
Sowerbyella sp.
Sowerbyella sp. Jones 1928