Where: Idaho (43.0° N, 112.1° W: paleocoordinates 16.4° N, 32.4° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Meade Peak Member (Phosphoria Formation), Roadian (272.3 - 268.8 Ma)

• bed-level stratigraphic resolution

Environment/lithology: offshore ramp; lithified, phosphatic limestone

Size class: macrofossils

Collection methods: Repository: University of Idaho

Primary reference: S. E. Bendix-Almgreen. 1966. New investigations on Helicoprion from the Phosphoria Formation of South-east Idaho, USA. Kongelige Danske Videnskabernes Selskab, Biologiske Skrifter 14(5):1-54 [M. Clapham/D. Robinson]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 140145: authorized by Matthew Clapham, entered by Matthew Clapham on 02.03.2013

Creative Commons license: CC BY (attribution)