VAL 216 Arrow Canyon (Carboniferous of the United States)

Where: Clark County, Nevada (36.7° N, 114.8° W: paleocoordinates 5.4° N, 41.0° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Bird Spring Formation, Gzhelian (303.7 - 298.9 Ma)

• Middle Virgilian is equivalent to Gzhelian according to Heckel and Clayton, 2006 (Geologica Acta 4:403-407)

• group of beds-level stratigraphic resolution

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

Size class: macrofossils

Preservation: original silica, replaced with silica

Collection methods: bulk, chemical

Primary reference: E. W. Lipman and R. L. Langenheim, Jr. 1983. Lepetopsis franae, n. sp. a New Patellid Gastropod from the Bird Spring Group, Virgilian, at Arrow Canyon, Clark County, Nevada. Journal of Paleontology 57(3):602-605 [N. Bonuso/P. Monarrez]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 141539: authorized by Nicole Bonuso, entered by Pedro Monarrez on 28.03.2013

Creative Commons license: CC BY (attribution)

Taxonomic list

 Archinacellida - Metoptomatidae
Lepetopsis franae Lipman and Langenheim 1983