Where: Adams County, Illinois (40.1° N, 91.1° W: paleocoordinates 13.5° S, 35.1° W)

• coordinate based on political unit

• local area-level geographic resolution

When: Warsaw Formation, Meramecian (343.0 - 335.5 Ma)

• formation-level stratigraphic resolution

Environment/lithology: marine; lithified limestone

Reposited in the ROM

Primary reference: D. B. Blake. 2002. Compsaster formosus Worthen & Miller (Asteroidea; Echinodermata): a Carboniferous homeomorph of post-Paleozoic Asteriidae. Paläontologische Zeitschrift 76(2):357-367 [L. Villier/L. Villier]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 91185: authorized by Loic Villier, entered by Loic Villier on 10.09.2009

Creative Commons license: CC BY (attribution)