UCMP A-8973, Shasta County (Permian to of the United States)

Where: California (41.1° N, 122.3° W: paleocoordinates 19.5° N, 39.5° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Nosoni Formation, Roadian to Roadian (272.3 - 264.3 Ma)

• bed-level stratigraphic resolution

Environment/lithology: deep-water; lithified shale

Size class: macrofossils

Primary reference: A. H. Coogan. 1960. Stratigraphy and paleontology of the Permian Nosoni and Dekkas Formations (Bollibokka Group). University of California Publications in Geological Sciences 36(5):243-316 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 105658: authorized by Matthew Clapham, entered by Matthew Clapham on 23.02.2011

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia
 Pectinida - Aviculopectinidae
Aviculopecten spp. M'Coy 1851 scallop
Aviculopecten cf. occidentalis Shumard 1855 scallop
Strophomenata
 Productida - Linoproductidae
 Productida - Productellidae
"Dictyoclostus arcticus" = Thamnosia arctica
"Dictyoclostus arcticus" = Thamnosia arctica Whitfield 1908
 Productida - Productidae
"Dictyoclostus" sp. Muir-Wood 1930
"Muirwoodia californica" = Yakovlevia californica Coogan 1960
Rhynchonellata
 Athyridida - Neoretziidae
Hustedia sp. Hall and Clarke 1893
 Athyridida - Athyrididae
 Spiriferida - Elythidae
Phricodothyris sp. George 1932
 Rhynchonellida - Stenoscismatidae
"Stenoscisma venusta" = Stenoscisma venustum
"Stenoscisma venusta" = Stenoscisma venustum Girty 1909