Bullwhacker mine, Eureka (Cambrian of the United States)

Where: Eureka County, Nevada (39.5° N, 116.0° W: paleocoordinates 3.2° S, 87.9° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Bullwhacker Member (Windfall Formation), Trempealeauan (492.5 - 485.4 Ma)

• member-level stratigraphic resolution

Environment/lithology: lithified, brown, silty, sandy limestone and lithified, massive limestone

• carbonate ramp, above storm wave base characterized by massive limestones
• several hundred feet of thin-bedded tan or light-brown sandy or shaly limestone between units

Size class: macrofossils

Preservation: replaced with silica

Reposited in the USNM

Collection methods: bulk,

Primary reference: T. B. Nolan, C. W. Merriam, and J. S. Williams. 1956. The stratigraphic section in the vicinity of Eureka, Nevada. United States Geological Survey Professional Paper 276:1-77 [A. Behrensmeyer/A. Behrensmeyer/P. Wagner]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 233789: authorized by Pete Wagner, entered by Pete Wagner on 28.02.2024

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Lingulata
 Lingulida - Acrothelidae
Conodiscus burlingi
 Lingulida - Obolidae
Westonia iphis
Westonia iphis Walcott 1905
 Lingulida - Elkaniidae
Elkania hamburgensis
Elkania hamburgensis Walcott 1884
 Acrotretida - Acrotretidae
Homotreta eurekensis
Strophomenata
 Billingsellida - Billingsellidae
Xenorthis "n. sp."
Trilobita
 Harpetida - Heterocaryonidae
Bowmania americana
Bowmania americana Walcott 1884 trilobite
 Corynexochida - Illaenuridae
Rasettia sp.
Rasettia sp. Lochman 1953 trilobite
 Asaphida - Remopleurididae
Richardsonella eurekensis, ? Apatokephalus sp.
? Apatokephalus sp. Brögger 1896 trilobite
 Asaphida - Eurekiidae
Tostonia iole, Eurekia angustifrons, Eurekia dissimilis, Eurekia granulosa, Corbinia sp.
Tostonia iole trilobite
Corbinia sp. Walcott 1924 trilobite
 Asaphida - Ptychaspididae
Idiomesus sp., Euptychaspis kirki
Idiomesus sp. Raymond 1924 trilobite
 Asaphida - Dikelocephalidae
Briscoia nevadensis, Elkia nasuta, Tellerina marica, Calvinella tenuisculpta
Briscoia nevadensis Resser 1937 trilobite
Elkia nasuta trilobite
Tellerina marica trilobite
 Ptychopariida - Plethopeltidae
"Plethometopus sp." = Plethopeltis, Leiocoryphe platycephala
"Plethometopus sp." = Plethopeltis Raymond 1913 trilobite
Artiopoda
 Agnostida - Metagnostidae
Geragnostus brevis
 Agnostida - Diplagnostidae
Pseudagnostus laevis