Where: Northwest Territories, Canada (63.5° N, 128.7° W: paleocoordinates 7.7° S, 71.0° W)
• coordinate stated in text
When: Nevadella trilobite zone, Sekwi Formation, Early/Lower Cambrian (538.8 - 509.0 Ma)
• group of beds-level stratigraphic resolution
Environment/lithology: marine; lithified, fine-grained, gray, blue limestone
Size classes: macrofossils, mesofossils
Preservation: mold/impression
Collected by W. H. Fritz; reposited in the GSC
• Trilobites only;collection 73033, 604 ft above base of formation
Primary reference: W. H. Fritz. 1972. Lower Cambrian trilobites from the Sekwi Formation type section, northwestern Canada. In M. Rafuse (ed.), Geological Survey of Canada Bulletin 212 [M. Hopkins/S. Mahmood/S. Mahmood]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 156147: authorized by Melanie Hopkins, entered by Shaun Mahmood on 09.05.2014
Creative Commons license: CC BY (attribution)
Taxonomic list
Artiopoda | |
Pagetides spinulus Fritz 1972 | |
Trilobita | |
Holmiella preancora Fritz 1972 trilobite | |
Nevadella sp. Raw 1936 trilobite | |
Sekwiaspis artifrons n. gen. n. sp.
Sekwiaspis artifrons n. gen. n. sp. Fritz 1972 trilobite | |
Kootenia diutina Fritz 1972 trilobite | |
Keeleaspis stupenda Fritz 1972 trilobite
Keeleaspis pustula Fritz 1972 trilobite |