Where: Butler County, Ohio (40.1° N, 82.3° W: paleocoordinates 24.9° S, 52.8° W)
• coordinate based on political unit
• local area-level geographic resolution
When: Lituigraptus convolutus conodont zone, Brassfield Limestone Formation, Alexandrian (443.4 - 436.0 Ma)
• Lituigraptus convolutus conodont zone
•
•The Brassfield Formation of Ohio was considered by Rexroad (1967) on the basis of rather sparse conodont evidence to be either late early, or middle Llandoverian. According to Nicoll & Rexroad (1968) the Brassfield, aside from the Lee Creek Member and Belfast Member (where present), is in their Icriodina irregularis condonont assemblage Zone in their study area, including the sites of Rexroad (1967). It should be noted that Foerste (1885) recorded Microcardinalia triplesiana from the Soldiers Home site (locality 6 of Ausich, 1986b); this occurrence has been confirmed (Rexroad et al., 1965; Boucot &Ehlers, 1963), and suggested a late Llandoverian (C4-C5) age to Rexroad et al. (1965). Microcardinalia triplesiana is now regarded as a good zonal indicator of approcimately C1-C2 age (Carlson & Boucot, 1970; Berry & Boucot, 1970). Triplesia has also been cited from the Brassgield in the Dayton, Ohio vicinity (Berry & Boucot, 1970), suggesting that the Brassfield in this area is a typical example of a Microcardinalia Zone fauna, i.e., C1-C2.
• member-level stratigraphic resolution
Environment/lithology: reef, buildup or bioherm; lithified reef rocks
Size class: macrofossils
Primary reference: A. F. Foerste. 1893. Fossils of the Clinton group in Ohio and Indiana. Report of the Geological Survey of Ohio 7(5):516-597 [P. Wagner/P. Wagner]more details
Purpose of describing collection: paleoecologic analysis
PaleoDB collection 172922: authorized by Pete Wagner, entered by Pete Wagner on 31.08.2015
Creative Commons license: CC BY (attribution)
Taxonomic list
Gastropoda | |
"Bellerophon (Bucania) opertus n. sp." = Sphenosphaera opertus, "Bellerophon fiscellostriatus" = Sphenosphaera fiscellostriata
"Bellerophon (Bucania) opertus n. sp." = Sphenosphaera opertus Foerste 1893 snail
"Bellerophon fiscellostriatus" = Sphenosphaera fiscellostriata Foerste 1887 snail Bellerophon fiscello-striatus
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