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

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

• coordinate based on nearby landmark

• local area-level geographic resolution

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

Environment/lithology: interdistributary bay; lithified, concretionary, sideritic mudstone

Size class: macrofossils

Preservation: mold/impression

Collected by L.E. Daniels; reposited in the UMMP, USNM

• Other specimens collected by Daniels on behalf of Lacoe are in the USNM, but some of this material is not recorded in the USNM database. Poliochera glabra is at UMMP according to Selden (1992).

Primary reference: A. I. Petrunkevitch. 1913. A monograph of the terrestrial Palaeozoic Arachnida of North America. Transactions of the Connecticut Acadamy of Arts and Sciences 18:1-137 [D. Smith/A. Kinchloe/M. Clapham] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 146857: authorized by Matthew Clapham, entered by Matthew Clapham on 01.07.2013, edited by Conrad Labandeira and Jered Karr

Creative Commons license: CC BY (attribution)