Where: Wabasha County, Minnesota (44.4° N, 91.2° W)

• Paleocoordinates: 19.4° N, 106.5° W (Wright 2013)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Reno Member (Franconia Formation), Franconian (497.0 - 485.4 Ma)

• LITHOSTRATIGRAPHY: Reno Mbr of the Franconia Fm (following Berg 1953, 1954). STRATIGRAPHIC RELATIONS: From the Reno Mbr, the upper member of the Franconia Fm, which is underlain by the Tomah Mbr. The Franconia Fm is overlain by the Black Earth Mbr of the St Lawrence Fm. AGE: From the middle of the Ptychaspis striata zonule, Ptychaspis-Prosaukia Zone (Howell et al. 1944) of the Middle Croixan. STRATIGRAPHIC POSITION: Unit 1, 2 ft thick, at the base of a 40+ ft thick section.

• bed-level stratigraphic resolution

Environment/lithology: offshore; lithified, bioturbated, fine-grained, glauconitic sandstone

Size class: macrofossils

Preservation: cast, mold/impression

Reposited in the USNM

Collection methods: bulk, quarrying,

• COLLECTOR: R.E Grant. REPOSITORY: USNM

Primary reference: R. E. Grant. 1962. Trilobite distribution, upper Franconia Formation (Upper Cambrian), southeastern Minnestoa. Journal of Paleontology 36(5):965-998 [A. Miller/A. Hendy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 62117: authorized by Austin Hendy, entered by Austin Hendy on 12.07.2006

Creative Commons license: CC0 (CC0)