Where: Fulton County, Illinois (40.7° N, 90.0° W)

• Paleocoordinates: 5.8° S, 25.6° W (Wright 2013)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Carbondale Formation, Desmoinesian (312.8 - 306.0 Ma)

• unnamed black shale immediately overlying the coal (Springfield Coal Member 5) and immediately underlying the St. David Limestone Member

• bed-level stratigraphic resolution

Environment/lithology: marine; lithified, black shale

Size class: macrofossils

Preservation: mold/impression

Primary reference: J. K. Rigby and M. H. Nitecki. 1975. An unusually well preserved heteractinid sponge from the Pennsylvanian of Illinois and a possible classification and evolutionary scheme for the Heteractinida. Journal of Paleontology 49(2):329-339 [W. Kiessling/U. Merkel]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 120999: authorized by Wolfgang Kiessling, entered by Uta Merkel on 25.11.2011

Creative Commons license: CC0 (CC0)