Where: Ohio (39.5° N, 84.1° W: paleocoordinates 25.7° S, 57.7° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Aphelognathus grandis conodont zone, Blanchester Member (Waynesville Formation), Richmondian (449.6 - 445.5 Ma)

• C5 sequence. Near top of member. Treptoceras duseri shale bed

• bed-level stratigraphic resolution

Environment/lithology: deep subtidal ramp; poorly lithified shale

Size classes: macrofossils, mesofossils

Preservation: mold/impression, original calcite, replaced with calcite

Primary reference: B. R. Hunda and N. C. Hughes. 2007. Evaluating paedomorphic heterochrony in trilobites: the case of the diminutive trilobite Flexicalymene retrorsa minuens from the Cincinnatian Series (Upper Ordovician), Cincinnati region. Evolution & Development 9(5):483-498 [P. Wagner/P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 192307: authorized by Pete Wagner, entered by Pete Wagner on 21.03.2018

Creative Commons license: CC BY (attribution)