Also known as Garst Farm

Where: Guthrie County, Iowa (41.8° N, 94.7° W: paleocoordinates 38.3° N, 52.2° W)

• coordinate based on unpublished field data

When: Nishnabotna Member (Dakota Formation), Late/Upper Albian (105.3 - 99.6 Ma)

Environment/lithology: estuary or bay; poorly lithified, muddy, silty mudstone

Size classes: macrofossils, mesofossils, microfossils

Preservation: adpression, original carbon

Primary reference: B. J. Witzke and G. A. Ludvigson. 1996. Mid-Cretaceous fluvial deposits of the eastern margin, western interior basin: Nishnabotna Member, Dakota Formation: A field guide to the Cretaceous of Guthrie County. Geological Survey Bureau Guidebook Series (17)1-75 [H. Sims/H. Sims] more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 127992: authorized by Hallie Sims, entered by Hallie Sims on 31.05.2012