D1511 CO (Ordovician of the United States)

Also known as SF 100

Where: Nye County, Nevada (39.0° N, 116.6° W: paleocoordinates 5.8° S, 80.4° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: O? brachiopod zone, Antelope Valley Formation (Pogonip Group), Whiterockian (470.0 - 457.3 Ma)

• Whiterockian; no formal stage

• bed-level stratigraphic resolution

Environment/lithology: deep subtidal shelf; lithified limestone

• middle shelf
• crystalline; thick-bedded; interbedded w.silty, nodular, weak Ls

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 104446: authorized by Seth Finnegan, entered by Seth Finnegan on 07.02.2011, edited by Melanie Hopkins

Creative Commons license: CC BY (attribution)

Taxonomic list

• Some Toquimia may be rafinesquinids
Ostracoda
 Leperditicopida - Leperditiidae
 Podocopida - Bairdiocyprididae
"Macrocyproides sp." = Bairdiocypridella
"Macrocyproides sp." = Bairdiocypridella Blumenstengel 1965 ostracod
 Palaeocopida - Leperditellidae
 Palaeocopida - Oepikellidae
Platybolbina sp. Henningsmoen 1953 ostracod
b
 Palaeocopida - Primitiidae
Ectoprimitia sp. ostracod
c
 Palaeocopida - Aparchitidae
Hyperchilarina sp. Harris 1957 ostracod
Trilobita
 Asaphida - Asaphidae
 Phacopida - Pliomeridae
Pseudomera barrandei Billings 1865 trilobite
Rhynchonellata
 Pentamerida - Tetralobulidae
 Orthida - Orthidae
Orthambonites paucicostatus Ulrich and Cooper 1938
"Orthambonites minisculus" = Paralenorthis minusculus Phleger 1933
 Orthida - Plaesiomyidae
Strophomenata
 Strophomenida - Leptellinidae
Toquimia kirki Ulrich and Cooper 1936
 Strophomenida - Plectambonitidae
Plectambonitidae indet. Kozlowski 1929
"Plectambonitid"