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

Where: Clark County, Nevada (36.7° N, 114.8° W: paleocoordinates 4.7° N, 41.7° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Bird Spring Formation, Kasimovian (307.0 - 303.7 Ma)

• Missourian (Cylindrical Triticites Zone) is equivalent to Kasimovian 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 144024: authorized by Nicole Bonuso, entered by Pedro Monarrez on 29.04.2013

Creative Commons license: CC BY (attribution)

Taxonomic list

 Productida - Productidae
"Antiquatonia portlockiana" = Antiquatonia portlockianus Norwood and Pratten 1855
subsp. ? crassicostata
 Productida - Paucispiniferidae
 Productida - Linoproductidae
Linoproductus prattenianus Norwood and Pratten 1855
 Productida - Rugosochonetidae
 Productida - Chonetidae
"Mesolobus euampygus" = Mesolobus mesolobus euampygus
"Mesolobus euampygus" = Mesolobus mesolobus euampygus Girty 1912
 Orthotetida - Derbyiidae
Derbyia crassa Meek and Hayden 1858
subsp. ? crassa
 Orthotetida - Meekellidae
 Athyridida - Neoretziidae
 Athyridida - Athyrididae
Composita sp. Brown 1849
 Spiriferida - Trigonotretidae
Neospirifer sp. Fredericks 1919
Neospirifer dunbari King 1933
subsp. alatus
 Spiriferida - Ambocoeliidae
Crurithyris sp. George 1931
Crurithyris expansa Dunbar and Condra 1932
 Orthida - Schizophoriidae
Schizophoria sp. King 1850
sp. A and sp. B
 Orthida - Rhipidomellidae