Where: Rock Island County, Illinois (41.6° N, 90.3° W: paleocoordinates 9.2° S, 30.3° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Tarter Member (Tradewater Formation), Carboniferous (360.7 - 298.9 Ma)

• bed-level stratigraphic resolution

Environment/lithology:

Size class: macrofossils

Primary reference: C. B. Read. 1947. Pennsylvanian floral zones and floral provinces. Journal of Geology 55:271-279 [H. Sims/S. Ostrowski] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 24653: authorized by Hallie Sims, entered by Heather Lindon on 14.08.2002