Proricephalus wilcoxensis Fauna (Cambrian of Canada)

Where: Alberta, Canada (51.5° N, 116.2° W: paleocoordinates 2.8° S, 75.6° W)

• coordinate estimated from map

• local area-level geographic resolution

When: Mistaya Formation, Sunwaptan (493.5 - 487.5 Ma)

• approximately 120m above base of Mistaya Fm. at Chaba Creek

• group of beds-level stratigraphic resolution

Environment/lithology: shallow subtidal; lithified, stromatolitic carbonate

• Mistaya Formation comprises 98m of cliff-forming dolostones at its type section at Mount Murchison. Undolomitized to the north display subtidal-supratidal carbonate facies

Size class: macrofossils

Primary reference: S. R. Westrop. 1986. Trilobites of the Upper Cambrian Sunwaptan Stage, southern Canadian Rocky Mountains, Alberta. Palaeontographica Canadiana 3:1-179 [S. Peters/S. Peters/U. Merkel]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 54094: authorized by Shanan Peters, entered by Shanan Peters on 22.09.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Trilobita
 Harpetida - Heterocaryonidae
? Conococheaguea ludvigseni n. sp., Heterocaryon vargum n. sp.
Heterocaryon vargum n. sp. trilobite
 Harpetida - Harpetidae
Kathrynia limbata
 Asaphida - Eurekiidae
Corbinia implumis, Eurekia longifrons, "Bayfieldia" sp.
"Bayfieldia" sp. Clark 1924 trilobite
 Asaphida - Ptychaspididae
Sunwaptia carinata, Proricephalus wilcoxensis, Euptychaspis typicalis
 Asaphida - Dikelocephalidae
Saukia cf. imperatrix, Saukiella pepinensis, Saukiella cf. junia, Prosaukia sp.
Saukiella cf. junia Walcott 1914 trilobite
Prosaukia sp. Ulrich and Resser 1933 trilobite
 Ptychopariida - Catillicephalidae
Theodenisia sp., Acheilops montis n. sp., Triarthropsis nitida, Triarthropsis cf. martginata
Theodenisia sp. Clark 1948 trilobite
Acheilops montis n. sp. trilobite
 Ptychopariida - Plethopeltidae
"Plethometopus cf. longispinus" = Plethopeltis, "Plethometopus cf. modestus" = Plethopeltis, Leiocoryphe platycephala
"Plethometopus cf. longispinus" = Plethopeltis trilobite
"Plethometopus cf. modestus" = Plethopeltis trilobite
 Ptychopariida - Kingstoniidae
Calvipelta spinosa n. gen. n. sp., "Bynumina" cf. vescula
Calvipelta spinosa n. gen. n. sp. trilobite