Where: Franklin County, Iowa (42.7° N, 93.3° W)
• Paleocoordinates: 27.0° S, 53.0° W (Wright 2013)
• coordinate based on political unit
• local area-level geographic resolution
When: McCraney Limestone Formation, Kinderhookian (358.9 - 352.0 Ma)
• group of beds-level stratigraphic resolution
Environment/lithology: shallow subtidal; lithified, silty lime mudstone and shale
Collection methods: bulk, surface (in situ), mechanical, sieve,
Primary reference: M. A. Stainbrook. 1950. The fauna and correlation of the McCraney Limestone of Iowa and Illinois. American Journal of Science 248(3):194-213 [J. Alroy/M. Sommers/M. Uhen]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 5933: authorized by John Alroy, entered by Mike Sommers on 17.12.1999, edited by Pete Wagner
Creative Commons license: CC0 (CC0)
Taxonomic list
Holothuroidea | |
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Echinoidea | |
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Blastoidea | |
cf. Mesoblastus sp. Etheridge and Carpenter 1886 blastoid | |
Crinoidea | |
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"Platycrinus sp." = Platycrinites
"Platycrinus sp." = Platycrinites Miller 1821 Sea lily | |
Rhynchonellata | |
Cranaena sp. Hall and Clarke 1893 | |
Strophomenata | |
Chonopectus fischeri Norwood and Pratten 1855 | |
Dictyoclostus sp. Muir-Wood 1930 | |
Linoproductus ovatus Hall 1858 | |
Gastropoda | |
Platyceras sp. Conrad 1840 snail | |
Bellerophontoidea indet. M'Coy 1851 snail | |
Bivalvia | |
"Grammysia hannibalensis" = Ectogrammysia hannibalensis
"Grammysia hannibalensis" = Ectogrammysia hannibalensis Shumard and Swallow 1858 clam | |
Aviculopecten cf. marbuti scallop |