USGS 7406 green, Montpelier Canyon (Triassic of the United States)

Where: Idaho (43.3° N, 111.3° W: paleocoordinates 12.6° N, 34.7° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Portneuf Member (Thaynes Formation), Spathian (251.3 - 247.2 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: open shallow subtidal; lithified limestone

Size class: macrofossils

Collection methods: peel or thin section,

Primary reference: G. H. Girty. 1927. Descriptions of new species of Carboniferous and Triassic fossils (from southeastern Idaho). United States Geological Survey Professional Paper 152:411-446 [P. Wagner/P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 108752: authorized by Matthew Clapham, entered by Matthew Clapham on 03.05.2011

Creative Commons license: CC BY (attribution)

Taxonomic list

Rhynchonellata
 Terebratulida - Notothyrididae
"Terebratula thaynesiana n. sp." = Obnixia thaynesiana
"Terebratula thaynesiana n. sp." = Obnixia thaynesiana Girty 1927