Collection 90666 (Cambrian of Canada)

Where: Yukon Territory, Canada (65.1° N, 134.7° W: paleocoordinates 0.5° N, 65.8° W)

• coordinate stated in text

When: Bonnia-Olenellus trilobite zone, Unit 5 Member (Illtyd Formation), Dyeran (515.3 - 511.2 Ma)

• Bonnia-Olenellus is Dyeran

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified, gray dolomite and unlithified, gray limestone

• Resistant, light grey carbonate buildups, limestone partially altered to dolomite, Thick to think wavy beds

Size classes: macrofossils, mesofossils

Preservation: cast, mold/impression

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

• Trilobites only, collection 90666, 562.7m from the base of the Illtyd formation

Primary reference: W. H. Fritz. 1991. Lower Cambrian Trilobites from the Illtyd Formation, Wernecke Mountains, Yukon Territory. In N.C. Ollerenshaw, L. Reynolds (eds.), Geological Survey of Canada Bulletin 409 [M. Hopkins/S. Mahmood]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 156223: authorized by Melanie Hopkins, entered by Shaun Mahmood on 12.05.2014

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Trilobita
 Ptychopariida - Ptychopariidae
Syspacephalus werneckensis n. sp. Fritz 1991 trilobite
 Corynexochida - Zacanthoididae
Zacanthopsis expansa Fritz 1991 trilobite
 Corynexochida - Dorypygidae
Bonnia columbensis Resser 1936 trilobite