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

Where: Grundy County, 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 (309.8 - 307.5 Ma)

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

• Illinois basin
• ironstone concretions

Size class: macrofossils

Preservation: mold/impression

Reposited in the USNM

• Repository: collection of Mr. P.A. Armstrong

Primary reference: S. H. Scudder. 1882. Archipolypoda, a subordinal type of spined myriapods from the Carboniferous formation. Memoirs of the Boston Society of Natural History 3:143-182 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 155941: authorized by Matthew Clapham, entered by Matthew Clapham on 04.05.2014

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Myriapoda
 Amynilyspedida - Amynilyspedidae
Amynilyspes wortheni n. gen. n. sp.
Amynilyspes wortheni n. gen. n. sp. Scudder 1882 millipede
USNM 38001
 Euphoberiida - Euphoberiidae
Euphoberia horrida, Euphoberia armigera, Euphoberia granosa, Euphoberia carri
Euphoberia horrida Scudder 1882 millipede
Euphoberia armigera Meek and Worthen 1868 millipede
Euphoberia granosa Scudder 1882 millipede
Euphoberia carri Scudder 1882 millipede