Where: Illinois (41.2° N, 88.2° W: paleocoordinates 4.8° S, 23.3° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Francis Creek Shale Member (Carbondale Formation), Westphalian D (309.8 - 307.5 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: deltaic; lithified, concretionary, ferruginous mudstone

Size class: macrofossils

Preservation: mold/impression, concretion

Collected by Ramsdell; reposited in the ROM

Primary reference: O. Bethoux and J. Kukalová-Peck. 2011. Royal Ontario Museum - Species List. [M. Clapham/J. Karr/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 124844: authorized by Matthew Clapham, entered by Jered Karr on 25.02.2012

Creative Commons license: CC BY (attribution)