Zone 20 - Bird Spring Fm., Arrow Canyon (Carboniferous of the United States)

Where: Clark County, Nevada (36.7° N, 114.8° W: paleocoordinates 2.6° N, 44.0° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Bird Spring Formation, Morrowan (323.2 - 318.6 Ma)

• group of beds-level stratigraphic resolution

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

Size class: macrofossils

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 144019: authorized by Nicole Bonuso, entered by Pedro Monarrez on 29.04.2013

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
unclassified
  -
Reticularina spinosa, Phrycodothyris perplexa
Rhynchonellata
 Terebratulida - Dielasmatidae
? Dielasma sp.
? Dielasma sp. King 1856
 Athyridida - Retziidae
Eumetria cf. acutirostra
 Athyridida - Neoretziidae
Hustedia gibbosa, Hustedia cf. gibbosa, Hustedia miseri, Hustedia rotundi
 Athyridida - Athyrididae
Composita sp., Composita gibbosa, Composita trilobita, Composita subtilita, Composita ovata, Cleiothyridina sp., Cleiothyridina pecosii, Cleiothyridina orbicularis
Composita sp. Brown 1849
Composita ovata Mather 1915
Cleiothyridina sp. Buckman 1906
 Spiriferida - Trigonotretidae
Neospirifer sp., "Spirifer goreii" = Neospirifer goreii, Neospirifer cameratus
Neospirifer sp. Fredericks 1919
"Spirifer goreii" = Neospirifer goreii Mather 1915
Neospirifer cameratus Morton 1836
 Spiriferida - Spiriferidae
Anthracospirifer sp., Anthracospirifer opimus, Anthracospirifer occiduus, Anthracospirifer birdspringensis
 Spiriferinida - Spiriferellinidae
Spiriferellina sp., Spiriferellina campestris
 Orthida - Schizophoriidae
Schizophoria texana, Schizophoria depressa
Schizophoria depressa Easton 1962
 Orthida - Enteletidae
Enteletes sp.
Enteletes sp. Waldheim 1825
 Orthida - Rhipidomellidae
Rhipidomella elyensis, Rhipidomella nevadensis, Rhipidomella carbonaria
Rhipidomella carbonaria Shumard and Swallow 1858
Strophomenata
 Productida - Strophalosiidae
Heteralosia slocomi
 Productida - Echinoconchidae
Juresania sp.
Juresania sp. Fredericks 1928
 Productida - Paucispiniferidae
Hystriculina sp.
Hystriculina sp. Muir-Wood and Cooper 1960
 Productida -
? Desmoinesia sp., "Desmoinesia missouriensis" = Desmoinesia nana
? Desmoinesia sp. Hoare 1960
"Desmoinesia missouriensis" = Desmoinesia nana Meek and Worthen 1866
 Productida - Linoproductidae
Linoproductus sp., Linoproductus ovata, Linoproductus prottenianus, Cancrinella sp.
 Productida - Monticuliferidae
Ovatia sp., "Cancrinella altissima" = Costatumulus altissima
"Cancrinella altissima" = Costatumulus altissima King 1938
 Productida - Productidae
? Flexaria sp., Flexaria arkansana, Buxtonia aff. websteri, Inflatia sp.
 Productida - Productellidae
Krotovia sp., "Kozlowskia cf. splendens" = Productus splendens, "Retaria cf. lasallensis" = Kutorginella lasallensis, Antiquatonia sp., Antiquatonia coloradoensis, Antiquatonia elyensis, ? Antiquatonia hermosana, Antiquatonia morrowensis
Krotovia sp. Fredericks 1928
"Kozlowskia cf. splendens" = Productus splendens Norwood and Pratten 1855
"Retaria cf. lasallensis" = Kutorginella lasallensis Worthen 1873
Antiquatonia sp. Miloradovich 1945
 Strophomenida - Rugosochonetidae
Eolissochonetes keyesi, Lissochonetes sp.
Lissochonetes sp. Dunbar and Condra 1932
 Orthotetida - Orthotetidae
Orthotetes sp., Orthotetes cf. occidentalis
Lingulata
 Lingulida - Discinidae
Orbiculoidea capuliformis