D1441 CO (Ordovician of the United States)

Also known as SF 12

Where: Nye County, Nevada (36.7° N, 116.2° W: paleocoordinates 6.4° S, 84.0° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Paralenorthis-Orthidiella brachiopod zone, Barnes Unit 12 Member (Antelope Valley Formation), Rangerian (470.0 - 470.3 Ma)

• Ibexian; Zone L.

• bed-level stratigraphic resolution

Environment/lithology: shallow subtidal; lithified limestone

• carbonate platform
• bioturbated lightly to moderately (ii 1-3); irregularly laminated; silty partings, thin-bedded to irregularly laminated

Size class: macrofossils

Preservation: replaced with silica

Collected by J. Ross, Jr. H. B. Barnes

Collection methods: bulk,

Primary reference: R. J., J.r. Ross and H. B. Barnes. 1967. Some Middle Ordovician Brachiopods and Trilobites from the Basin Ranges, Western United States. United States Geological Survey Professional Paper 523-D:D1-D4 [S. Finnegan/S. Finnegan/P. Wagner]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 104634: authorized by Seth Finnegan, entered by Seth Finnegan on 07.02.2011, edited by Jonathan Marcot

Creative Commons license: CC BY (attribution)

Taxonomic list

Rhynchonellata
 Orthida - Orthidae
Orthambonites sp. Pander 1830
 Orthida - Orthidiellidae
Orthidiella sp. Ulrich and Cooper 1936
Orthidium barnesi n. sp. Ross 1970
"bellelum"