Where: Illinois (41.7° N, 88.0° W: paleocoordinates 25.4° S, 51.0° W)

• coordinate based on political unit

• local area-level geographic resolution

When: Racine Dolomite Formation, Wenlock to Wenlock (433.4 - 423.0 Ma)

• General age of community stated as Racine Dolomite [and presumably equivalents?], Late Wenlock to Ludlow.

• formation-level stratigraphic resolution

Environment/lithology: deep subtidal ramp; dolomitic, argillaceous lime mudstone

Collection methods: Relative abundances given for trilobites. The data are for collections amassed over many years. Other taxa not listed include brachiopods, pisocrinid crinoids, nautiloids, gastropods, rugose corals, trace fossils.

Primary reference: D. G. Mikulic. 1999. Silurian trilobite associations in North America. In A. J. Boucot and J. D. Lawson (eds.), Paleocommunities--a case study from the Silurian and Lower Devonian 793-798 [M. Foote/M. Foote/M. Foote]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 24936: authorized by Michael Foote, entered by Michael Foote on 23.08.2002

Creative Commons license: CC BY (attribution)