D1690 CO (Ordovician of the United States)

Also known as SF 429

Where: Lincoln County, Nevada (37.3° N, 115.4° W: paleocoordinates 5.3° S, 87.0° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: D? trilobite zone, Goodwin Formation (Pogonip Group), Stairsian (485.4 - 478.6 Ma)

• Ibexian; Stairsian

• bed-level stratigraphic resolution

Environment/lithology: deep subtidal ramp; lithified limestone

• carbonate ramp, above storm wave base
• cherty; flat pebble conglomerates

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 104503: authorized by Seth Finnegan, entered by Seth Finnegan on 07.02.2011

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Artiopoda
 Agnostida - Metagnostidae
Geragnostus sp.
Geragnostus sp. Howell 1935
Trilobita
 Corynexochida - Leiostegiidae
Leiostegium sp.
Leiostegium sp. Raymond 1913 trilobite
 Proetida - Hystricuridae
"Hystricurus cf. genalatus" = Genalaticurus genalatus
"Hystricurus cf. genalatus" = Genalaticurus genalatus Ross 1951 trilobite
 Asaphida - Remopleurididae
Kainella sp.
Kainella sp. Walcott 1925 trilobite