Where: Wisconsin (43.0° N, 87.9° W: paleocoordinates 23.6° S, 50.9° W)

• coordinate based on political unit

• outcrop-level geographic resolution

When: Racine Formation, Wenlock (433.4 - 427.4 Ma)

• lower-middle Racine Formation. Age range for association stated as Wenlockian-Ludlovian (which corresponds to age range of Racine). I have assigned this to Wenlockian based on other collections from lower-middle Racine [e.g. coll. 13353] treated by this reference as Wenlockian.

• member-level stratigraphic resolution

Environment/lithology: deep subtidal ramp; dolomitic, shelly/skeletal, argillaceous wackestone and dolomitic, shelly/skeletal, argillaceous lime mudstone

Collection methods: Table 45.45, which has counts for one sample from Hartung Quarry. Note that Gissocrinus is not present in this sample.

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 26815: authorized by Michael Foote, entered by Michael Foote on 04.11.2002

Creative Commons license: CC BY (attribution)