D1606 CO (Ordovician of the United States)

Also known as SF 115

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? trilobite 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 104461: authorized by Seth Finnegan, entered by Seth Finnegan on 07.02.2011, edited by Melanie Hopkins

Creative Commons license: CC BY (attribution)

Taxonomic list

Strophomenata
 Strophomenida - Plectambonitidae
Deuteropoda
  -
Ostracoda indet. Latreille 1802 ostracod
"small ostracode"
Ostracoda
 Leperditellocopida - Schmidtellidae
Schmidtella sp. Ulrich 1892 ostracod
"Shmidtella"
 Leperditicopida - Leperditiidae
 Podocopida - Bairdiocyprididae
"? Macrocyproides sp." = Bairdiocypridella
"? Macrocyproides sp." = Bairdiocypridella Blumenstengel 1965 ostracod
 Palaeocopida - Leperditellidae
Trilobita
 Corynexochida - Illaenidae
Illaenus sp. Dalman 1827 trilobite
 Phacopida - Encrinuridae
Encrinuridae indet. Angelin 1854 trilobite
"Cybelid"; Miracybele?
Encrinuridae indet. Angelin 1854 trilobite
"Encrinurid"
 Phacopida - Pliomeridae
Pseudomera barrandei Billings 1865 trilobite
 Phacopida - Cheiruridae
Xystocrania perforator Billings 1865 trilobite
? Kawina sp. Barton 1916 trilobite
Giant species
 Asaphida - Nileidae
Nileus sp. Dalman 1827 trilobite
unclassified
  -
Porifera indet. Grant 1836
"Sponge"