Also known as Isaacson field locality 157

Where: Tarija, Bolivia (21.5° S, 64.8° W: paleocoordinates 69.6° S, 94.0° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Huamampampa Formation, Eifelian (391.9 - 388.1 Ma)

• bed-level stratigraphic resolution

Environment/lithology: marine; sandstone

Primary reference: P. E. Isaacson. 1977. Devonian stratigraphy and brachiopod paleontology of Bolivia. part A: Orthida and Strophomenida. Palaeontographica Abteilung A 155(5-6):133-192 [M. Foote/M. Foote/M. Foote] more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 36059: authorized by Michael Foote, entered by Michael Foote on 13.01.2004