D 1773 CO ( of the United States)

Also known as SF 466

Where: Eureka County, Nevada (39.6° N, 116.3° W: paleocoordinates 4.4° S, 84.2° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Middle? Member (Hanson Creek Formation), Ibexian (487.5 - 470.0 Ma)

• Ibexian

• bed-level stratigraphic resolution

Environment/lithology: shallow subtidal; lithified dolomite

• inner shelf
• coarse-grained; locally “vuggy”

Size class: macrofossils

Preservation: replaced with silica

Collected by J. Ross, Jr.

Collection methods: bulk,

Primary reference: R. J., J.r. Ross. 1970. Ordovician Brachiopods, Trilobites, and Stratigraphy in Eastern and Central Nevada. United States Geological Survey Professional Paper 639:1-99 [S. Finnegan/S. Finnegan/P. Wagner]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 104522: authorized by Seth Finnegan, entered by Seth Finnegan on 07.02.2011

Creative Commons license: CC BY (attribution)

Taxonomic list

Anthozoa
 Stauriida - Streptelasmatidae
? Streptelasma prolongatum Wilson 1926 horn coral
 Stauriida - Stauriidae
? Palaeophyllum sp. Billings 1858 horn coral
 Heliolitida - Halysitidae
? Catenipora sp. Lamarck 1816 tabulate coral