Yoho Shale lentil (Cambrian of Canada)

Where: British Columbia, Canada (52.8° N, 119.3° W: paleocoordinates 2.2° S, 78.4° W)

• coordinate based on political unit

• basin-level geographic resolution

When: Plagiura - Poliella trilobite zone, Yoho Shale Member (Mount Whyte Formation), Delamaran (513.0 - 505.0 Ma)

• M. Camb., Plagiura-Poliella zone. Was Merioneth, but Plagiura-Poliella is Delamaran (PJW).

• member-level stratigraphic resolution

Environment/lithology: marine; gray, cherty/siliceous shale

• "135 ft. of siliceous, fissile, dark grey shale, outer detrital belt, geosynclinal (pre-orogenic) BA4?"

Size classes: macrofossils, mesofossils

Primary reference: C. F. Deiss. 1939. Cambrian formations of southwestern Alberta and southeastern British Columbia. Geological Society America Bulletin 50(6):951-1026 [P. Wagner/P. Wagner/J. Ju]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 197: authorized by Jack Sepkoski, entered by Mike Sommers on 20.11.1998, edited by Pete Wagner

Creative Commons license: CC BY (attribution)

Taxonomic list

• "C Deiss 1939. Cambrian formations of southwestern Alberta and southeastern British Columbia. GSA Bull. 50:951-1026."
 Ptychopariida - Alokistocaridae
Amecephalus sp. Walcott 1924 trilobite
Chancia sp. Walcott 1924 trilobite
 Ptychopariida - Ptychopariidae
"Syspacephalus sp." = Ptychoparella
"Syspacephalus sp." = Ptychoparella Poulson 1927 trilobite
 Corynexochida - Oryctocephalidae
Oryctocephalus sp. Walcott 1886 trilobite
 Corynexochida - Zacanthoididae
Stephenaspis sp. Rasetti 1951 trilobite
 Corynexochida - Dorypygidae
Ogygopsis sp. Walcott 1889 trilobite
 Tryblidiida - Protoconchoididae
 Paterinida - Paterinidae
? Paterina sp. Beecher 1891
originally entered as "? Paterina sp."
Dictyonina sp. Cooper 1942
 Acrotretida - Acrotretidae
Acrotreta sp. Kutorga 1848
 Lingulida - Acrothelidae
Acrothele sp. Linnarsson 1876
 Hyolithida - Hyolithidae
Hyolithes sp. d'Eichwald 1840
  - Dolichometopidae
Poliella sp. Walcott 1916
  - Dolichometopidae
Wenkchemnia sp. Rasseti 1951