Also known as A 160
Where: Northwest Territories, Canada (61.6° N, 125.8° W)
• Paleocoordinates: 27.4° N, 101.8° W (Wright 2013)
• coordinate stated in text
• outcrop-level geographic resolution
When: Esbataottine Formation, Chazyan (471.3 - 457.3 Ma)
• formation-level stratigraphic resolution
Environment/lithology: deep subtidal; argillaceous, silty limestone
Size class: macrofossils
Preservation: replaced with silica
Primary reference: B. D. E. Chatterton and R. Ludvigsen. 1976. Silicified Middle Ordovician trilobites from the South Nahanni River Area, District of Mackenzie, Canada. Palaeontographica Abteilung A 154(1-3):1-106 [S. Holland/T. Hanson/T. Hanson]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 26056: authorized by Steven Holland, entered by Tori Hanson on 01.10.2002
Creative Commons license: CC0 (CC0)
Taxonomic list
Artiopoda | |
Calyptaulax callirachis Cooper 1953 trilobite | |
Ceraurinella kingstoni Chatterton and Ludvigsen 1976 trilobite
Ceraurinella nahanniensis Chatterton and Ludvigsen 1976 trilobite | |
Failleana calva Chatterton and Ludvigsen 1976 trilobite | |
"Bumastus (Bumastoides) lenzi" = Bumastoides lenzi, Nanillaenus mackenziensis
"Bumastus (Bumastoides) lenzi" = Bumastoides lenzi Chatterton and Ludvigsen 1976 trilobite
Nanillaenus mackenziensis Chatterton and Ludvigsen 1976 trilobite | |
Remopleurides pattersoni Chatterton and Ludvigsen 1976 trilobite | |
Isotelus parvirugosus Chatterton and Ludvigsen 1976 trilobite |