D1517 CO (Ordovician of the United States)

Also known as SF 104

Where: Nye County, Nevada (39.0° N, 116.6° W: paleocoordinates 5.5° S, 81.8° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: L? brachiopod zone, Antelope Valley Formation (Pogonip Group), Rangerian (470.0 - 470.3 Ma)

• Whiterockian; no formal stage

• bed-level stratigraphic resolution

Environment/lithology: deep subtidal shelf; lithified limestone

• middle shelf
• thin-bedded; muddy; nodular in places, more resistant silty calcarenitic beds

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 104450: 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 - Hystricuridae
Psalikilus sp.
Psalikilus sp. Ross 1951 trilobite
 Phacopida - Cheiruridae
? Kawina sp.
? Kawina sp. Barton 1916 trilobite
Giant species
 Asaphida - Nileidae
Nileus sp.
Nileus sp. Dalman 1827 trilobite
Rhynchonellata
 Orthida - Orthidae
"Orthambonites minisculus" = Paralenorthis minusculus
"Orthambonites minisculus" = Paralenorthis minusculus Phleger 1933
Strophomenata
 Strophomenida - Taffiidae
Aporthophyla typa
Aporthophyla typa Ulrich and Cooper 1936