Ledyard Shale Member, Ludlowville Formation, marcasite concretion fauna, western (Devonian of the United States)
Where: Erie/Genesee County, New York (42.9° N, 78.4° W: paleocoordinates 36.6° S, 25.9° W)
• coordinate based on political unit
• local area-level geographic resolution
When: Ledyard Member (Ludlowville Formation), Givetian (387.7 - 382.7 Ma)
• member-level stratigraphic resolution
Environment/lithology: deep subtidal shelf; gray, argillaceous shale
• soft argillaceous shale, brown to dark gray
Primary reference: D. W. Fisher. 1951. Marcasite fauna in the Ludlowville Formation of western New York. Journal of Paleontology 25(3):365-371 [A. Miller/K. Layou]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 10457: authorized by Arnold Miller, entered by Karen Layou on 18.04.2001
Creative Commons license: CC BY (attribution)
Taxonomic list
• Author gives no definition for relative abundance information codes, but I assume they are based on rare, common, abundant scales. This information is recorded in comment field.
Show authors, comments, and common names
| Tentaculita | |
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| Gastropoda | |
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"Bucanopsis leda" = Retispira leda
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| Bivalvia | |
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| Rhynchonellata | |
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| Strophomenata | |
"Chonetes lepidus" = Klocinetes lepidus
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Chonetes mucronatus, "Chonetes setigerus" = Hallinetes setigera
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| Trilobita | |
"Phacops rana" = Eldredgeops rana
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| Ostracoda | |
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