PBDB Collection

Pit 11, Braidwood, Mazon Creek (FMNH 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

Reposited in the FMNH

Primary reference: F. M. Carpenter and E. S. Richardson. 1978. Structure and Relationships of the Upper Carboniferous Insect, Prochoroptera calopteryx (Diaphanopterodea, Prochoropteridae). Psyche 85:219-227 [C. Labandeira/C. Labandeira/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 122493: authorized by Matthew Clapham, entered by Matthew Clapham on 31.12.2011, edited by Bryan Gee

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names

Archisymplectes rhothon
-	Archisymplectes rhothon n. gen. n. sp.¹⁰ Archisymplectes rhothon n. gen. n. sp.¹⁰ Schram 1973 FMNH PE12670, 12669, 21552
Amphibia
Temnospondyli - Amphibamidae	Amphibamus grandiceps⁹ Amphibamus grandiceps⁹ Cope 1865 tetrapod FMNH PR558, 664

Cyclostomi -	Squirmarius testai n. gen. n. sp.⁸ Squirmarius testai n. gen. n. sp.⁸ McCoy et al. 2023 FMNH PF 17809, 17810, 17811, 17812
Enoplea
Chromadorida - Nemavermidae	"Nemavermes mackeei n. gen. n. sp." = Tullimonstrum gregarium¹⁰ "Nemavermes mackeei n. gen. n. sp." = Tullimonstrum gregarium¹⁰ Richardson 1966 FMNH PE21551
Priapulidae
- Priapulidae	Priapulites konecniorum n. gen. n. sp.¹⁰ Priapulites konecniorum n. gen. n. sp.¹⁰ Schram 1973 FMNH PE21555, 21412
Arachnida
Ricinulei - Poliocheridae	Poliochera gibbsi n. sp.¹¹ Poliochera gibbsi n. sp.¹¹ Selden 1992 hooded tickspider FMNH PE29176 (ex. Tom Gibbs coll)
Scorpiones - Eoctonidae	Eoctonus miniatus⁶ Eoctonus miniatus⁶ Petrunkevitch 1913 scorpion FMNH PE 32202
Scorpiones - Mazoniidae	Mazonia woodiana⁶ Mazonia woodiana⁶ Meek and Worthen 1868 scorpion FMNH PE 39253 (Taelle coll.)
Myriapoda
Chilognatha - Hexecontasomatidae	Hexecontasoma carinatum n. gen. n. sp.⁴ Hexecontasoma carinatum n. gen. n. sp.⁴ Hannibal 2000 millipede FMNH PE 23487, 13656
Insecta
Palaeodictyoptera - Eubleptidae	Eubleptus danielsi¹ Eubleptus danielsi¹ Handlirsch 1906 winged insect FMNH PE32045-6 (Herdina), FMNH PE22016 (Dwayne Stone)
Diaphanopterodea - Prochoropteridae	Prochoroptera calopteryx Prochoroptera calopteryx Handlirsch 1911 winged insect FMNH PE25667 (JJF-IL-007)
Dicondylia - Srokalarvidae	Srokalarva berthei n. gen. n. sp.⁵ Srokalarva berthei n. gen. n. sp.⁵ Haug et al. 2016 winged insect FMNH MCP-322
Protorthoptera - Eucaenidae	Eucaenus ovalis³ Eucaenus ovalis³ Scudder 1885 winged insect FMNH PE 20790
Dicondylia - Syntonopteridae	Syntonoptera schucherti² Syntonoptera schucherti² Handlirsch 1911 winged insect FMNH PE16216 (ex. Ida Thompson, 1928)
Paucijaculum samamithion
-	Paucijaculum samamithion n. gen. n. sp.¹⁰ Paucijaculum samamithion n. gen. n. sp.¹⁰ Schram 1973 FMH PE11640, 12835
Cephalopoda
Coleoidea -	Pohlsepia mazonensis n. gen. n. sp.⁷ Pohlsepia mazonensis n. gen. n. sp.⁷ Kluessendorf and Doyle 2003 FMNH PE51727

¹Carpenter 1983; ²Carpenter 1987; ³Carpenter and Richardson 1976; ⁴Hannibal 2000; ⁵Haug et al. 2015; ⁶Kjellesvig-Waering 1986; ⁷Kluessendorf and Doyle 2003; ⁸McCoy et al. 2023; ⁹Schoch and Milner 2014; ¹⁰Schram 1973; ¹¹Selden 1992