silicified fauna, Barton Canyon (Cambrian of the United States)

Where: Nevada (40.0° N, 114.9° W: paleocoordinates 4.4° S, 86.6° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Bullwhacker Member (Windfall Formation), Sunwaptan (493.5 - 487.5 Ma)

• two-meter interval of the upper Bullwhacker Member

• bed-level stratigraphic resolution

Environment/lithology: deep subtidal; lithified, shelly/skeletal, sandy grainstone

• thin-bedded, fossiliferous calcareous sandstones and sandy bioclastic grainstones, with minor oolitic pack and grainstones, intrarudites and thrombolitic microbial buildups

Size classes: macrofossils, mesofossils

Preservation: cast, replaced with silica

Reposited in the SUI

Collection methods: bulk, chemical,

Primary reference: J. M. Adrain and S. R. Westrop. 2004. A Late Cambrian (Sunwaptan) Silicified Trilobite Fauna from Nevada. Bulletins of American Paleontology 365:5-55more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 235995: authorized by Melanie Hopkins, entered by Melanie Hopkins on 04.09.2024

Creative Commons license: CC BY (attribution)

Taxonomic list

Trilobita
 Asaphida - Eurekiidae
Corbinia implumis Winston and Nicholls 1967 trilobite
Eurekia rintintini n. sp. Adrain and Westrop 2004 trilobite
 Asaphida - Dikelocephalidae
Dikelocephalus minnesotensis Owen 1852 trilobite
Prosaukia oldyelleri n. sp. Adrain and Westrop 2004 trilobite
 Asaphida - Ptychaspididae
Euptychaspis dougali n. sp. Adrain and Westrop 2004 trilobite
Idiomesus levisensis Rasetti 1944 trilobite
Sunwaptia plutoi n. sp. Adrain and Westrop 2004 trilobite
 Ptychopariida - Catillicephalidae
Triarthropsis sp. Ulrich 1931 trilobite
Triarthropsis limbata Rasetti 1959 trilobite
 Ptychopariida - Plethopeltidae
Glaberaspis scoobydooi n. sp. Adrain and Westrop 2004 trilobite
Cherrycreekia benjii n. sp. Adrain and Westrop 2004 trilobite
 Corynexochida - Illaenidae
Illaenurus montanensis Kobayashi 1935 trilobite
 Harpetida - Entomaspididae
Notchpeakia cherrycreekensis n. sp. Adrain and Westrop 2006 trilobite
 Harpetida - Heterocaryonidae
Bowmania lassieae n. sp. Adrain and Westrop 2004 trilobite