Where: Iowa (42.2° N, 91.1° W: paleocoordinates 22.5° S, 53.9° W)
• coordinate based on political unit
• local area-level geographic resolution
When: Buck Creek Quarry Member (Scotch Grove Formation), Telychian to Telychian (436.0 - 426.2 Ma)
• "Late Llandoverian (C6) to Early Wenlockian..."
• member-level stratigraphic resolution
Environment/lithology: deep subtidal ramp; graded, burrowed, cherty/siliceous packstone and graded, burrowed, cherty/siliceous grainstone
•SEP environmental call based on given description and same vol. page 807.
Preservation: replaced with silica
Primary reference: T. J. Frest, C. E. Brett, and B. J. Witzke. 1999. Caradocian-Gedinnian echinoderm associations of Central and Eastern North America. Paleocommunities--a case study from the Silurian and Lower Devonian 638-783 [M. Foote/K. Koverman/P. Wagner] more details
Purpose of describing collection: paleoecologic analysis
PaleoDB collection 26810: authorized by Michael Foote, entered by Michael Foote on 04.11.2002