D240 CO. On ridge between Black Canyon and South Creek, just north of divide (Ordovician of the United States)

Where: Idaho (43.9° N, 113.0° W: paleocoordinates 6.7° S, 69.1° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Saturday Mountain Formation, Richmondian (449.5 - 443.7 Ma)

• formation-level stratigraphic resolution

Environment/lithology: limestone

Size class: macrofossils

Preservation: replaced with silica

Reposited in the USNM

Primary reference: R. J. Ross. 1959. Brachiopod fauna of Saturday Mountain Formation Southern Lemhi Range Idaho. United States Geological Survey Professional Paper 294-L:441-461 [P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 183358: authorized by Pete Wagner, entered by Pete Wagner on 13.12.2016

Creative Commons license: CC BY (attribution)

Taxonomic list

Strophomenata
 Strophomenida - Sowerbyellidae
Eochonetes voldemortus n. sp.1 Bauer and Stigall 2016 The Brach who must not be named
 Strophomenida - Rafinesquinidae
? Rafinesquina sp. Hall and Clarke 1892
 Strophomenida - Strophomenidae
Strophomena sp. Rafinesque and De Blainville 1824
Rhynchonellata
 Orthida - Plaesiomyidae
Plaesiomys idahoensis n. sp.2 Ross 1959
Plaesiomys subquadratus idahoensis
 Orthida - Hesperorthidae
Lordorthis variabilis n. gen. n. sp.
Lordorthis variabilis n. gen. n. sp. Ross 1959
 Orthida - Glyptorthidae
 Orthida - Platystrophiidae
 Orthida - Platyorthidae
Diceromyonia cf. tersa Sardeson 1892
 Atrypida - Anazygidae
"Zygospira cf. recurvirostris" = Anazyga recurvirostra Hall 1847
 Atrypida - Atrypidae
"Zygospira aff. putilla" = Atrypa putilla
"Zygospira aff. putilla" = Atrypa putilla Hall and Clarke 1894