Arco Hills type section, packstone (Carboniferous of the United States)

Where: Butte County, Idaho (43.6° N, 113.3° W: paleocoordinates 3.9° N, 41.1° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Adetognathus unicornis conodont zone, Arco Hills Formation, Serpukhovian (330.9 - 323.2 Ma)

• Late Chesterian, Mamet Foraminiferal Zone 19

• group of beds-level stratigraphic resolution

Environment/lithology: deep subtidal; lithified packstone

• transported brachiopod assemblages in packstones

Size class: macrofossils

Primary reference: S. H. Butts. 2007. Silicified Carboniferous (Chesterian) Brachiopoda of the Arco Hills Formation, Idaho. Journal of Paleontology 81(1):48-63 [W. Kiessling/U. Merkel]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 93283: authorized by Wolfgang Kiessling, entered by Uta Merkel on 13.01.2010

Creative Commons license: CC BY (attribution)

Taxonomic list

Rhynchonellata
 Athyridida - Athyrididae
 Spiriferinida - Punctospiriferidae
 Spiriferida - Spiriferidae
Anthracospirifer leidyi Norwood and Pratten 1855
Anthracospirifer curvilateralis Easton 1962
subsp. curvilateralis
Anthracospirifer arcoensis n. sp. Butts 2007
Anthracospirifer shawi Gordon 1975
subsp. shawi and exoletus
 Spiriferida - Elythidae