D1394 CO (Ordovician of the United States)

Also known as SF 426

Where: Inyo County, California (36.4° N, 116.6° W: paleocoordinates 4.4° S, 88.0° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Bellefontia-Xenostegium trilobite zone, Goodwin Formation, Gasconadian (485.4 - 477.7 Ma)

• Ibexian; ?B

• bed-level stratigraphic resolution

Environment/lithology: deep subtidal ramp; lithified limestone

• carbonate ramp, above storm wave base
• wavy-parting; medium-bedded; silicified trilobites

Size class: macrofossils

Preservation: replaced with silica

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

Collection methods: bulk,

Primary reference: R. J. Ross, Jr. 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/J. Ju]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 104643: authorized by Seth Finnegan, entered by Seth Finnegan on 07.02.2011

Creative Commons license: CC BY (attribution)

Taxonomic list

Trilobita
 Aulacopleurida - Hystricuridae
Hystricurus sp. Raymond 1913 trilobite
 Ptychopariida - Kingstoniidae
Clelandia bispina Ross and Barnes 1967 trilobite
Clelandia aspina Ross and Barnes 1967 trilobite
 Asaphida - Asaphidae
Xenostegium sp. Walcott 1924 trilobite
Bellefontia sp. Walcott 1924 trilobite
 Asaphida - Remopleurididae
Remopleuridiella sp. Ross 1951 trilobite
 Asaphida - Nileidae
Symphysurina sp. Ulrich 1924 trilobite