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 David Douglass

• Repository: collection of David Douglass, Yachats, Oregon

Primary reference: L. Burnham. 1983. Studies on Upper Carboniferous insects: 1. The Geraridae (Order Protorthoptera). Psyche 90:1-57 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 151855: authorized by Matthew Clapham, entered by Matthew Clapham on 12.10.2013

Creative Commons license: CC BY (attribution)