Pioche Shale, Bed 9 (Cambrian of the United States)

Where: White Pine County, Nevada (40.0° N, 115.0° W: paleocoordinates 3.2° S, 91.5° W)

• coordinate estimated from map

• hand sample-level geographic resolution

When: Albertella trilobite zone, Upper Member (Pioche Shale Formation), Delamaran (511.2 - 506.5 Ma)

• Listed as Lower to Middle Cambrian, Albertella

• group of beds-level stratigraphic resolution

Environment/lithology: lithified, fine-grained, black, gray limestone

• thin beds of medium to dark gray and black, finely crystalline limestone

Size classes: macrofossils, mesofossils

Collected by W.H. Fritz; reposited in the USNM

• Trilobites only; articulates observed but not collected. Collection 9, 495 feet above base of formation

Primary reference: W. H. Fritz. 1968. Lower and early Middle Cambrian trilobites from the Pioche Shale, East-Central Nevada, U.S.A. Palaeontology 11:36-43 [P. Novack-Gottshall/P. Hearn/P. Wagner]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 155979: authorized by Melanie Hopkins, entered by Melanie Hopkins on 05.05.2014

Creative Commons license: CC BY (attribution)

Taxonomic list

Trilobita
 Corynexochida - Dolichometopidae
Poliella germana Resser 1939 trilobite
Poliella denticulata Rasetti 1951 trilobite
Poliella leipalox Fritz 1968 trilobite
 Corynexochida - Zacanthoididae
Ptarmiganoides araneicauda n. sp. Fritz 1968 trilobite
Albertella judithi Fritz 1968 trilobite
Albertella eiloitys Fritz 1968 trilobite
Albertelloides pandispinata n. gen. n. sp. trilobite
Albertelloides sp. n. gen. Fritz 1968 trilobite
 Corynexochida - Dorypygidae
Olenoides steptoensis Fritz 1968 trilobite
 Ptychopariida - Alokistocaridae
Alokistocare alta Fritz 1968 trilobite
 Ptychopariida - Ptychopariidae
"Caborcella clinolimbata n. sp." = Nyella clinolimbata
"Caborcella clinolimbata n. sp." = Nyella clinolimbata Fritz 1968 trilobite
Artiopoda
 Agnostida - Eodiscidae
"Pagetia maladensis" = Macannaia maladensis, Pagetia resseri
"Pagetia maladensis" = Macannaia maladensis Resser 1939
Pagetia resseri Kobayashi 1943