Waterloo Mine, Montpelier (Permian of the United States)

Where: Idaho (42.3° N, 111.2° W: paleocoordinates 14.9° N, 32.2° 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

Collected by W. Youngquist, B. Hawley, J. Haegele in 1949, 1950

• Repository: Idaho Museum of Natural History

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 140078: authorized by Matthew Clapham, entered by Matthew Clapham on 28.02.2013

Creative Commons license: CC BY (attribution)

Taxonomic list

 Eugeneodontiformes - Helicoprionidae
"Helicoprion ferrieri" = Helicoprion davisii, "Helicoprion cf. ferrieri" = Helicoprion davisii
"Helicoprion ferrieri" = Helicoprion davisii Woodward 1886 chimaera
Idaho 1-3, 6,7,9, "Thiel P/MP", IMNH 37899 (Idaho 4)
"Helicoprion cf. ferrieri" = Helicoprion davisii Woodward 1886 chimaera
"Idaho 8"