Mazon Creek, Essex fauna (Carboniferous of the United States)

Where: Grundy/Will County, Illinois (41.3° N, 88.1° W: paleocoordinates 5.2° S, 23.7° W)

• coordinate based on political unit

• local area-level geographic resolution

When: Francis Creek Shale Member (Carbondale Formation), Moscovian (315.2 - 307.0 Ma)

• Not listed in reference; using standard Mazon Creek details; presumably from same sources as Richardson (1956) and Johnson and Richardson (1966, 1968, 1969)

Environment/lithology: deltaic; silty mudstone and nodular siderite

• Siderite concretions. Not listed in reference; using standard Mazon Creek details; presumably from same sources as Richardson (1956) and Johnson and Richardson (1966, 1968, 1969)

Size class: macrofossils

Preservation: mold/impression, concretion, soft parts, replaced with other

Collected by Richardson and Johnson in the 1950s and 1960s; reposited in the FMNH

Collection methods: mechanical,

Primary reference: F.R. Schram. 1969. Some Middle Pennsylvanian Hoplocarida (Crustacea) and their phylogenetic significance. Fieldiana Geology 12:235-289 [P. Novack-Gottshall/P. Novack-Gottshall]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 230306: authorized by Phil Novack-Gottshall, entered by Phil Novack-Gottshall on 07.06.2023

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Malacostraca
 Hoplostraca - Sairocarididae
Kellibrooksia macrogaster n. gen. n. sp.1
Kellibrooksia macrogaster n. gen. n. sp.1 Schram 1973
 Aeschronectida - Kallidecthidae
Kallidecthes richardsoni n. gen. n. sp.
Kallidecthes richardsoni n. gen. n. sp.
 Stomatopoda - Tyrannophontidae
Tyrannophontes theridion n. gen. n. sp.
Tyrannophontes theridion n. gen. n. sp. Schram 1969 mantis shrimp
 Isopoda - Palaeophreatoicidae
Hesslerella shermani n. gen. n. sp.2
Hesslerella shermani n. gen. n. sp.2 Schram 1970 isopod
1Schram 1973; 2Schram 1974