Pit 11, Braidwood, Mazon Creek (Piecko coll) (Carboniferous of the United States)

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

• Illinois basin
• ironstone concretions

Size class: macrofossils

Preservation: mold/impression, concretion

Collected by Helen Piecko, Ted Piecko

• Repository: collection of Helen and Ted Piecko, Chicago, Illinois

Primary reference: F. M. Carpenter and E. S. Richardson. 1971. Additional insects in Pennsylvanian concretions from Illinois. Psyche 78:267-295 [C. Labandeira/C. Labandeira/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 151852: authorized by Matthew Clapham, entered by Matthew Clapham on 12.10.2013

Creative Commons license: CC BY (attribution)

Taxonomic list

Priapulidae
  - Priapulidae
Priapulites konecniorum4 Schram 1973
HTP3265
Insecta
 Palaeodictyoptera - Eubleptidae
Eubleptus danielsi1 Handlirsch 1906 winged insect
Piecko 402, 422, 436
 Diaphanopterodea - Prochoropteridae
Prochoroptera calopteryx3 Handlirsch 1911 winged insect
Piecko HTP12523, HTP415
 Megasecoptera - Brodiidae
Eubrodia dabasinskasi Carpenter 1967 winged insect
HTP433
 Megasecoptera - Mischopteridae
Mischoptera douglassi2 Carpenter and Richardson 1968 winged insect
HTP43
Helenodora inopinata
  -
Helenodora inopinata n. gen. n. sp.5
Helenodora inopinata n. gen. n. sp.5 Thompson and Jones 1980
FMNH PE 29049, 29050