US 52 Roadcut (Ordovician of the United States)
Where: Adams County, Ohio (38.7° N, 83.5° W: paleocoordinates 26.9° S, 58.8° W)
When: Elkhorn Formation, Katian (453.0 - 445.2 Ma)
• The original identification was as being in the Elkhorn member; this is part of the C6 sequence at the top of the Richmondian
Environment/lithology: deep subtidal; green, blue shale
• very fissile blue-green shale
Size class: macrofossils
Primary reference: K.E. Caster and E.N. Kjellesvig-Waering. 1964. Upper Ordovician eurypterids of Ohio. Palaeontographica Americana 4(32):301-358 [R. Plotnick/R. Plotnick]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 204962: authorized by Roy Plotnick, entered by Roy Plotnick on 01.10.2019
Creative Commons license: CC BY (attribution)
Taxonomic list
Show authors, comments, and common names
| unclassified | |
| Deuteropoda | |
|
Ostracoda indet. Latreille 1802 ostracod | |
| Euchelicerata | |
|
Megalograptus ohioensis Caster and Kjellesvig-Waering 1964 eurypterid | |
| Trilobita | |
|
Flexicalymene sp. Shirley 1936 trilobite | |
|
Isotelus sp. Dekay 1824 trilobite | |
| Cephalopoda | |
|
Nautiloidea indet. Agassiz 1847 nautiloid | |
| Gastropoda | |
|
Gastropoda indet. Cuvier 1795 snail | |
| Bivalvia | |
|
Pholadomorpha sp. Foerste 1914 clam | |
| Brachiopoda | |
|
Brachiopoda indet. lamp shell | |
| Stenolaemata | |
|
Trepostomata indet. Ulrich 1882 | |