(Zone of Profusulinella) - Bird Spring Fm., Arrow Canyon (Carboniferous of the United States)

Where: Clark County, Nevada (36.7° N, 114.8° W: paleocoordinates 3.4° N, 43.0° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Bird Spring Formation, Moscovian (315.2 - 307.0 Ma)

• Atokan (Profusulinella Zone) is equivalent to lower Moscovian at Arrow Canyon (Bishop et al., 2010 Geosphere 6:1-34)

• group of beds-level stratigraphic resolution

Environment/lithology: shallow subtidal; lithified, cherty/siliceous limestone and lithified, silty limestone

Size classes: macrofossils, mesofossils

Preservation: original silica

Collection methods: bulk, chemical

Primary reference: R. L. Langenheim, Jr., B. G. Huff, E. W. Lipman and R. C. Vaiden. 1985. Preliminary report of the brachiopod fauna, Arrow Canyon section, southern Nevada, U.S.A. Xth International Congress, Carboniferous Stratigraphy and Geology, Madrid, 1983, Compte rendu 2:425-433 [N. Bonuso/P. Monarrez/P. Monarrez]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 144021: authorized by Nicole Bonuso, entered by Pedro Monarrez on 29.04.2013

Creative Commons license: CC BY (attribution)

Taxonomic list

Strophomenata
 Strophomenida - Rugosochonetidae
 Orthotetida - Orthotetidae
 Productida - Linoproductidae
Linoproductus prattenianus Norwood and Pratten 1855
 Productida - Productellidae
 Productida - Productidae
Dictyoclostus sp. Muir-Wood 1930
Rhynchonellata
 Spiriferinida - Spiriferellinidae
 Spiriferida - Trigonotretidae
"Neospirifer triplicatus" = Neospirifer dunbari
"Neospirifer triplicatus" = Neospirifer dunbari King 1933
 Spiriferida - Spiriferidae
 Orthida - Rhipidomellidae
 Athyridida - Athyrididae
Composita ovata Mather 1915