ammonites
Silliman's Fossil Mount (Roy 1941) (Ordovician to of Canada)

Where: Nunavut, Canada (63.7° N, 69.0° W: paleocoordinates 9.8° S, 38.5° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Mohawkian to Mohawkian (457.5 - 443.7 Ma)

Environment/lithology: dolomitic limestone and calcareous shale

• Environmental call by T. Hanson.
• "Throughout the Mount, the top 50 feet of these beds consists of massive dolomite limestone, the next 75 feet of thin-bedded limestone and dolomite, and the lower 175 feet of calcareous shale with some interbedded limestone."

Size class: macrofossils

Primary reference: A. K. Miller, W. Youngquist, and C. Collinson. 1954. Ordovician cephalopod fauna of Baffin Island. Geological Society of America Memoir 62:1-234 [S. Holland/T. Hanson/T. Hanson] more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 24116: authorized by Steven Holland, entered by Tori Hanson on 31.07.2002, edited by Pete Wagner and Melanie Hopkins