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
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
Malacostraca | |
Kellibrooksia macrogaster n. gen. n. sp.1
Kellibrooksia macrogaster n. gen. n. sp.1 Schram 1973 | |
Tyrannophontes theridion n. gen. n. sp.
Tyrannophontes theridion n. gen. n. sp. Schram 1969 mantis shrimp | |
Kallidecthes richardsoni n. gen. n. sp.
Kallidecthes richardsoni n. gen. n. sp. | |
Hesslerella shermani n. gen. n. sp.2
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