Where: Goodhue County, Minnesota (44.5° N, 92.9° W: paleocoordinates 18.3° S, 63.0° W)

• coordinate based on political unit

• local area-level geographic resolution

When: Ischadites iowensis zone, Cummingsville Formation, Shermanian (457.3 - 449.6 Ma)

• "[T]he lower part of the type Prosser Limestone, the equivalent of the Rivoli Member of the Illinois and Iowa classification, has greatly increased in mud content and must be classed as part of the Cummingsville Formation here."

• formation-level stratigraphic resolution

Environment/lithology: silty limestone

Size class: macrofossils

Collection methods: mechanical,

Primary reference: R. E. Sloan and D. A. DesAutels. 1987. The Wagner Quarry cystoid bed: a study in Prosser (Sherwood) paleoecology. Middle and Late Ordovician lithostratigraphy and biostratigraphy of the Upper Mississippi Valley: Minnesota Geological Survey Report of Investigations 35 60-62 [S. Holland/T. Hanson/T. Hanson]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 23092: authorized by Steven Holland, entered by Tori Hanson on 09.07.2002

Creative Commons license: CC BY (attribution)