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
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
Rhynchonellata | |
Brevilamnulella thebesensis Savage 1913 | |
Cryptothyrella ovoides Savage 1913 | |
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