Where: Illinois (43.0° N, 88.0° W: paleocoordinates 24.3° S, 50.1° W)
• coordinate estimated from map
• basin-level geographic resolution
When: Wenlock to Wenlock (433.4 - 423.0 Ma)
• Portions of Joliet Fm., Sugar Run Fm., lower-middle Racine Fm., and Wabash Fm.
Environment/lithology: deep subtidal; dolomitic, shelly/skeletal, argillaceous wackestone and dolomitic, shelly/skeletal, argillaceous lime mudstone
Collection methods: I have included taxa from table 45.45 as well as others mentioned in text.
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 26816: authorized by Michael Foote, entered by Michael Foote on 04.11.2002
Creative Commons license: CC BY (attribution)