Also known as Section 5A.
Where: Nunavut, Canada (63.7° N, 69.0° W: paleocoordinates 10.9° S, 39.9° W)
• coordinate stated in text
• outcrop-level geographic resolution
When: Climacograptus spiniferus graptolite zone, Unit 1 Member (Amadjuak Formation), Chatfieldian to Chatfieldian (453.8 - 450.2 Ma)
• Belodina confluens zone (Zhang 2017) and Acanthochitina cancellata zone (Asselin, Achab & Soufiane 2000)
• group of beds-level stratigraphic resolution
Environment/lithology: dolomitic limestone and calcareous shale
Size class: macrofossils
Reposited in the GSC
Primary reference: T. E. Bolton. 2000. Ordovician megafauna, southern Baffin Island, Nunavat. Geological Survey of Canada Bulletin 557:39-158 [P. Wagner/P. Wagner]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 192339: authorized by Pete Wagner, entered by Pete Wagner on 23.03.2018
Creative Commons license: CC BY (attribution)
Taxonomic list
Trilobita | |
Flexicalymene croneisi Roy 1941 trilobite | |
Triarthrus (Triarthrus) eatoni Hall 1838 trilobite
Triarthrus (Danarcus) glaber Billings 1859 trilobite | |
"Isotelus cf. iowaensis" = Isotelus iowensis Owen 1852 trilobite
Pseudogygites arcticus trilobite
Pseudogygites latimarginatus Hall 1847 trilobite | |
Cephalopoda | |
Lambeoceras baffinense Miller et al. 1954 | |
Rasmussenoceras leveannulatum Troedsson 1926 | |
Gastropoda | |
Maclurina sp. Ulrich and Scofield 1897 snail | |
Demospongiae | |
Amsassia floweri chaetetid sponge | |
Chlorophyceae | |