Where: Minnesota (45.0° N, 93.3° W: paleocoordinates 18.0° S, 64.9° W)

• coordinate based on nearby landmark

When: St. Peter Sandstone Formation, Whiterockian to Whiterockian (470.0 - 451.0 Ma)

• EZ 2

Environment/lithology: marine; lithified sandstone

Size class: macrofossils

Preservation: cast

Collection methods: List is originally from Sandeson 1892, 1896 but was revised by Sloan.

Primary reference: R. E. Sloan, W.F. Rice, E. Hedblom and J.M. Mazzullo. 1987. The Middle Ordovician Fossils of the Twin Cities, Minnesota. Minnesota Geological Survey, University of Minnesota, Guidebook Series no. 15 53-69 [M. Patzkowsky/Z. Krug]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 10767: authorized by Mark Patzkowsky, entered by Zack Krug on 20.06.2001

Creative Commons license: CC BY (attribution)