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

Where: Illinois (41.2° N, 88.2° W: paleocoordinates 4.8° S, 23.3° W)

• coordinate based on nearby landmark

• hand sample-level geographic resolution

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

• Westphalian C/D

• bed-level stratigraphic resolution

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

• Illinois basin

Size class: macrofossils

Preservation: mold/impression

Reposited in the FMNH

• Repository: formerly private collection of Mr. Thomas V. Testa, Coal City, Illinois

Primary reference: J. Kukalová-Peck. 1987. New Carboniferous Diplura, Monura, and Thysanura, the hexapod ground plan, and the role of thoracic side lobes in the origin of wings (Insecta). Canadian Journal of Zoology 65:2327-2345 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 127721: authorized by Matthew Clapham, entered by Lindy Edwards on 22.05.2012, edited by Matthew Clapham

Creative Commons license: CC BY (attribution)

Taxonomic list

Insecta
 Paoliida - Anthracoptilidae
Adiphlebia lacoana3 Scudder 1885 winged insect
TVT 2023
 Paoliida - Blattinopsidae
Stephanopsis testai n. sp.2 Dvořák et al. 2022 winged insect
FMNH TVT 4023
 Megasecoptera - Protohymenidae
Carbohymen testai n. gen. n. sp.4
Carbohymen testai n. gen. n. sp.4 Pecharová and Prokop 2018 winged insect
TVT 1455
Hexapoda
 Diplura - Testajapygidae
Testajapyx thomasi n. gen. n. sp.
Testajapyx thomasi n. gen. n. sp. Kukalová-Peck 1987 two-pronged bristletails
TVT 25
Enteropneusta
  - Spengelidae
Mazoglossus ramsdelli1 Bardack 1997