Mazon Creek (ROM 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 (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 ROM

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 112637: authorized by Matthew Clapham, entered by Jered Karr on 14.07.2011, edited by Matthew Clapham

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Thylacocephala
 Concavicarida - Clausocarididae
Convexicaris mazonensis2
Convexicaris mazonensis2 Schram 1990
ROMIP47987
 Concavicarida - Concavicarididae
Concavicaris georgeorum2
Concavicaris georgeorum2 Schram 1990
ROMIP61587, 61588, 61591
  -
Eodollocaris keithflinti n. gen. n. sp.2
Eodollocaris keithflinti n. gen. n. sp.2 Laville et al. 2021
ROMIP61586
Hexapoda
 Hexapoda -
Hexapoda indet.1
Hexapoda indet.1 Latreille 1825
ROM 45548
 Diplura - Testajapygidae
Testajapyx thomasi1
Testajapyx thomasi1 Kukalová-Peck 1987 two-pronged bristletails
ROM 45523
Insecta
  -
Insecta indet.1
Insecta indet.1 Linnaeus 1758 insect
ROM 45528, 45531
 Dicondylia -
Pterygota indet.1
Pterygota indet.1 Brauer 1885 winged insect
ROM 45547
 Dicondylia - Eoblattidae
Lobeatta schneideri n. gen. n. sp.
Lobeatta schneideri n. gen. n. sp. Béthoux 2005 winged insect
ROM 45568
 Dicondylia - Phyloblattidae
Phyloblatta sp.1
Phyloblatta sp.1 Handlirsch 1906 winged insect
ROM 45533 (spelled "Thyloblatta" but perhaps misspelling of Phyloblatta)
 Protorthoptera - Eucaenidae
Eucaenus ovalis1
Eucaenus ovalis1 Scudder 1885 winged insect
ROM 45549
 Megasecoptera - Brodiidae
cf. Eubrodia cf. dabasinskasi1
cf. Eubrodia cf. dabasinskasi1 Carpenter 1967 winged insect
ROM 45546
 Diaphanopterodea - Prochoropteridae
Prochoroptera calopteryx1
Prochoroptera calopteryx1 Handlirsch 1911 winged insect
ROM 45543, 45524
Helenodora inopinata
  -
Helenodora inopinata3
Helenodora inopinata3 Thompson and Jones 1980
ROM 47513, 45565, 47978 (NEIU MCP 184)
1Bethoux and Kukalová-Peck 2011; 2Laville et al. 2021; 3Murdock et al. 2016