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Mazon Creek (FMNH collection) (Carboniferous of the United States)

Where: Illinois (41.3° N, 88.4° W: paleocoordinates 4.6° S, 23.4° W)

• coordinate estimated from map

• local area-level geographic resolution

When: Francis Creek Shale Member (Carbondale Formation), Westphalian D (311.4 - 306.9 Ma)

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

• Illinois basin
• ironstone concretions

Size class: macrofossils

Preservation: mold/impression

Reposited in the FMNH

Primary reference: O. Béthoux. 2005. Reassigned and new basal Archaeorthoptera from the Upper Carboniferous of Mazon Creek (IL, USA). Journal of Orthoptera Research 14(2):121-126 [M. Clapham/J. Karr] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 112638: authorized by Matthew Clapham, entered by Jered Karr on 14.07.2011, edited by Matthew Clapham, Amy Delelli and Lindy Edwards

Creative Commons license: CC BY (attribution)