Where: Northwest Territories, Canada (68.0° N, 135.4° W: paleocoordinates 64.6° N, 61.9° W)
• coordinate estimated from map
• outcrop-level geographic resolution
When: Richardson Mountains Formation, Early/Lower Callovian (164.7 - 161.2 Ma)
• PJW: Savik formation elevated to Group. However, this is nowhere near the Savik group. The Richardson Mountains formation is the Bajocian - Callovian aged rock in the Alavik Range area, underlying the Alavik formation and overlying the Manuel Creek formation.
• group of beds-level stratigraphic resolution
Environment/lithology: marine; lithified siliciclastic sediments
Size class: macrofossils
Preservation: mold/impression
Collected by J.A. Jeletzky in 1955; reposited in the GSC
Primary reference: H. Frebold. 1964. The Jurassic faunas of the Canadian Arctic, Cadoceratinae. Geological Survey of Canada Bulletin 119:1-27more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 236663: authorized by Matthew Clapham, entered by Matthew Clapham on 19.10.2024
Creative Commons license: CC BY (attribution)
Taxonomic list
Cephalopoda | |
Cadoceras (Stenocadoceras) canadense n. sp. Frebold 1964 ammonite
Cadoceras septentrionale latidorsata Frebold 1964 ammonite |