Where: Oregon (43.9° N, 119.7° W: paleocoordinates 27.6° N, 55.9° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: columbiae ammonoid zone, Bucklandi (196.5 - 189.6 Ma)

• bed-level stratigraphic resolution

Environment/lithology: marine; lithified limestone

Size class: macrofossils

Collection methods: Repository: Northwest Museum of Natural History (NWMNH)

Primary reference: D. G. Taylor and J. Guex. 2002. The Triassic/Jurassic System boundary in the John Day Inlier, east-central Oregon. Oregon Geology 64:3-28 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 157630: authorized by Matthew Clapham, entered by Matthew Clapham on 26.06.2014

Creative Commons license: CC BY (attribution)