Where: Floyd County, Iowa (43.1° N, 93.0° W: paleocoordinates 29.2° S, 37.6° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Cerro Gordo Member (Lime Creek Formation), Frasnian (382.7 - 372.2 Ma)

• several beds in the middle of the member

• group of beds-level stratigraphic resolution

Environment/lithology: marine; calcareous shale

Collection methods: field collection of Ager's assistant Guber

Primary reference: P. Wallace. 1978. Homeomorphy between Devonian brachiopod communities in France and Iowa. Lethaia 11:259-272 [J. Alroy/J. Alroy]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 3405: authorized by John Alroy, entered by John Alroy on 31.07.1999, edited by Alycia Stigall

Creative Commons license: CC BY (attribution)