D 297 CO (Ordovician of the United States)

Also known as SF 442

Where: Eureka County, Nevada (39.2° N, 116.3° W: paleocoordinates 4.3° S, 85.2° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Leiostegium-Kainella trilobite zone, Goodwin Formation, Stairsian (485.4 - 478.6 Ma)

• Ibexian; no formal stage; ?B Zone

•Zone D!

• bed-level stratigraphic resolution

Environment/lithology: deep subtidal ramp; lithified limestone

• carbonate ramp, above storm wave base
• thin-bedded; slabby; finely -Xstalline

Size class: macrofossils

Preservation: replaced with silica

Collected by J. Ross, Jr.; reposited in the USGS

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 104511: 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
Trilobita
 Corynexochida - Leiostegiidae
Leiostegium goodwinensis
Leiostegium goodwinensis Ross 1970 trilobite
 Proetida - Hystricuridae
? Hystricuridae indet.
? Hystricuridae indet. Hupé 1953 trilobite
"Hystricurid"
 Asaphida - Remopleurididae
Apatokephalus sp.
Apatokephalus sp. Brögger 1896 trilobite
 Asaphida - Asaphidae
Asaphidae indet., "Protopresbynileus wildeni" = Protopresbynileus willdeni, "? Niobella sp." = Niobe (Niobella)
Asaphidae indet. Burmeister 1843 trilobite
"Megalaspid"
"Protopresbynileus wildeni" = Protopresbynileus willdeni Hintze 1953 trilobite
"? Niobella sp." = Niobe (Niobella) Reed 1931 trilobite