Where: Ontario, Canada (46.3° N, 83.9° W: paleocoordinates 21.4° S, 56.8° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Blackriveran (457.3 - 449.6 Ma)

• no further details on stratigraphy are given

Environment/lithology: shallow subtidal; lithology not reported

Size class: macrofossils

Primary reference: R. C. Frey. 1995. Middle and Upper Ordovician nautiloid cephalopods of the Cincinnati Arch region of Kentucky, Indiana, and Ohio. U.S. Geological Survey Professional Paper 1066P:1-126 [S. Holland/S. Holland]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 87997: authorized by Björn Kröger, entered by Torsten Liebrecht on 30.03.2009

Creative Commons license: CC BY (attribution)