Also known as Bartlett's Mill, Marsh's Mill or Marshall's Mill

Where: Ontario, Canada (43.1° N, 81.8° W: paleocoordinates 36.0° S, 28.7° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Arkona Formation, Givetian (388.1 - 383.7 Ma)

• Rickard (1984, Geological Society of America Bulletin: Vol. 95, No. 7, pp. 814–828)

• bed-level stratigraphic resolution

Environment/lithology: limestone

Size class: macrofossils

Preservation: replaced with silica

Reposited in the UMMP, USNM

Collection methods: chemical

Primary reference: E. L. Yochelson and R. W. Kopf. 1956. A new Devonian spinose platyceratid gastropod. Journal of Paleontology 30(5):1170-1172 [P. Wagner/P. Wagner] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 64664: authorized by Pete Wagner, entered by Pete Wagner on 11.09.2006