Where: Lincoln County, Kentucky (37.6° N, 84.6° W: paleocoordinates 27.4° S, 61.4° W)
• coordinate estimated from map
• outcrop-level geographic resolution
When: Amorphognathus superbus conodont zone, Gilbert Member (Ashlock Formation), Maysvillian (450.2 - 449.6 Ma)
• Section no. 21B
• bed-level stratigraphic resolution
Environment/lithology: lagoonal; fine-grained, medium, gray, green, blue limestone
Size class: macrofossils
Preservation: replaced with silica
Reposited in the USNM
Primary reference: G.P. Wahlman. 1992. Middle and Upper Ordovician symmetrical univalved mollusks (Monoplacophora and Bellerophontina) of the Cincinnati Arch region. United States Geological Survey Professional Paper 1066(O):1-123 [P. Wagner/P. Wagner/E. Ito]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 76970: authorized by Pete Wagner, entered by Pete Wagner on 11.12.2007
Creative Commons license: CC BY (attribution)
Taxonomic list
Gastropoda | |
Sphenosphaera capax Ulrich and Scofield 1897 snail | |
Rhynchonellata | |
Platystrophia ponderosa1 Foerste 1909 | |
Orthorhynchula linneyi2 James 1881 | |
Cyclocystoidea | |
Cyclocystoides sp.3 Salter and Billings 1858 |