Where: Golden Valley County, Montana (46.7° N, 109.1° W: paleocoordinates 3.9° N, 36.8° W)
• coordinate estimated from map
• small collection-level geographic resolution
When: Heath Formation, Serpukhovian (330.9 - 323.2 Ma)
• Lower Heath. JA: late Chesterian is Serpukhovian according to Mii et al. 1999 (GSA Bull 111:960-973)
• bed-level stratigraphic resolution
Environment/lithology: offshore; lithified, black, gray limestone
Reposited in the USGS
Collection methods: surface (in situ),
Primary reference: W. H. Easton. 1962. Carboniferous formations and faunas of central Montana. United States Geological Survey Professional Paper 348:1-126 [J. Alroy/M. Sommers/M. Uhen]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 5645: authorized by John Alroy, entered by Mike Sommers on 09.11.1999, edited by Pete Wagner
Creative Commons license: CC BY (attribution)
Taxonomic list
Trilobita | |
Weberides samwaysi Brezinski 2005 trilobite | |
Lingulata | |
| |
Craniata | |
"Crania cf. modesta" = Petrocrania modesta
"Crania cf. modesta" = Petrocrania modesta White and St. John 1867 | |
Strophomenata | |
Nix angulata n. gen. n. sp.
Nix angulata n. gen. n. sp. Easton 1962 | |
"Productus fasciculatus" = Productus (Diaphragmus) fasciculatus
"Productus fasciculatus" = Productus (Diaphragmus) fasciculatus McChesney 1860 | |
| |
Rhynchonellata | |
Punctospirifer transversus McChesney 1860 | |
? Cranaena circularis n. sp. Easton 1962 | |
Bivalvia | |
? Aviculopecten sp. M'Coy 1851 scallop |