D1683 CO (Ordovician of the United States)

Also known as SF 616

Where: Lincoln County, Nevada (37.3° N, 115.4° W: paleocoordinates 6.2° S, 84.8° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: I? trilobite zone, Ninemile Formation, Blackhillsian (474.9 - 470.0 Ma)

• Ibexian; Blackhillsian

• bed-level stratigraphic resolution

Environment/lithology: deep subtidal shelf; lithified limestone

• middle shelf
• nodular; cherty

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 104550: 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
 Proetida - Bathyuridae
? Peltabellia sp.
? Peltabellia sp. Whittington 1953 trilobite
 Phacopida - Pliomeridae
Pliomeridae indet.
Pliomeridae indet. Raymond 1913 trilobite
"Pliomerid"
 Asaphida - Asaphidae
Trigonocerca sp., Ptyocephalus sp.
Trigonocerca sp. Ross 1951 trilobite
Ptyocephalus sp. Agassiz 1843 trilobite