Edgewood Group, Locality B (Silurian of the United States)

Where: Pike County, Missouri (39.4° N, 91.1° W: paleocoordinates 22.2° S, 58.4° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Bryant Knob Formation, Llandovery (443.4 - 433.4 Ma)

• The whole of the formation here is 1.5 ft thick.

• bed-level stratigraphic resolution

Environment/lithology: deep subtidal shelf; lithified, ooidal, gray limestone

• "Unrestricted offshore environment of moderate depth involving some water movement by waves and (or) currents." "Light gray organo-detrital limestone; mostly spar cement, some oolites present."

Preservation: replaced with silica

Primary reference: T. W. Amsden. 1974. Late Ordovician and Early Silurian articulate brachiopods from Oklahoma, southwestern Illinois, and eastern Missouri. Bulletin - Oklahoma Geological Survey 119:1-154 [J. Alroy/M. Sommers/M. Uhen]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 3349: authorized by John Alroy, entered by Mike Sommers on 30.07.1999

Creative Commons license: CC BY (attribution)

Taxonomic list

• Brachiopods (articulated) only.
Show authors, comments, and common names
Rhynchonellata
 Pentamerida - Virgianidae
Brevilamnulella thebesensis
 Athyridida - Meristellidae
Cryptothyrella ovoides
 Atrypida - Atrypinidae
? Eospirigerina putilla
? Eospirigerina putilla Hall and Clarke 1894
originally entered as "? Eospirigerina putilla"