Also known as P 1512, GSC loc. no. C-26318
Where: Northwest Territories, Canada (61.7° N, 125.9° W: paleocoordinates 5.6° N, 59.9° W)
• coordinate stated in text
• outcrop-level geographic resolution
When: Esbataottine Formation, Chazyan (470.0 - 457.3 Ma)
• bed-level stratigraphic resolution
Environment/lithology: deep subtidal; argillaceous, silty limestone
Size classes: macrofossils, microfossils
Preservation: replaced with silica
Collection methods: Collection also includes rare ostracods and bryozoans.
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 26054: authorized by Steven Holland, entered by Tori Hanson on 01.10.2002, edited by Melanie Hopkins and Pete Wagner
Creative Commons license: CC BY (attribution)
Taxonomic list
Ostracoda | |
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Trilobita | |
Amphilichas conradi Chatterton and Ludvigsen 1976 trilobite | |
Dolichoharpes aff. reticulata Whittington 1949 trilobite | |
"Carrickia pinguimitra" = Phorocephala pinguimitra
"Carrickia pinguimitra" = Phorocephala pinguimitra Chatterton and Ludvigsen 1976 trilobite | |
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Failleana calva Chatterton and Ludvigsen 1976 trilobite | |
Nanillaenus aduncus, "Bumastus (Bumastoides) lenzi" = Bumastoides lenzi
Nanillaenus aduncus Chatterton and Ludvigsen 1976 trilobite
"Bumastus (Bumastoides) lenzi" = Bumastoides lenzi Chatterton and Ludvigsen 1976 trilobite | |
Remopleurides pattersoni Chatterton and Ludvigsen 1976 trilobite | |
Isotelus parvirugosus Chatterton and Ludvigsen 1976 trilobite
Nahannia mediocrisulcata Chatterton and Ludvigsen 1976 trilobite | |
Calyptaulax callirachis Cooper 1953 trilobite | |
Cybeloides cimelia Chatterton and Ludvigsen 1976 trilobite | |
Acanthoparypha echinoderma, Acanthoparypha evitti, Sphaerexochus arenosus, Ceraurinella nahanniensis, Holia glabra1
Acanthoparypha echinoderma Chatterton and Ludvigsen 1976 trilobite
Acanthoparypha evitti Chatterton and Ludvigsen 1976 trilobite
Sphaerexochus arenosus Chatterton and Ludvigsen 1976 trilobite
Ceraurinella nahanniensis Chatterton and Ludvigsen 1976 trilobite | |
Apianurus parabarbatus Chatterton and Ludvigsen 1976 trilobite |