Princess Margaret Range, Axel Heiberg Island (Jurassic of Canada)

Where: Nunavut, Canada (78.7° N, 88.7° W: paleocoordinates 61.4° N, 20.9° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Jaeger Formation, Spinatum (189.6 - 183.0 Ma)

• sample from red-weathering sandstones lying between the Heiberg and Savik Formations, 46 m above top of Heiberg Fm, which is tentatively correlated with the Jaeger Fm

• bed-level stratigraphic resolution

Environment/lithology: marine; lithified, massive, bioturbated sandstone

• 80 m of grey-brown, recessive shales interbedded with grey to yellow sandstones; the sandstones are massive, 2-10 m thick, with some plant debris and bioturbation, and they typically weather dark reddish brown or pink

Size class: macrofossils

Reposited in the GSC

Collection methods: surface (in situ),

Primary reference: R. L. Hall and M.K. Howarth. 1983. Protogrammoceras paltum (Buckman), a late Pliensbachian (Jurassic) ammonite from Axel Heiberg Island, Canadian Arctic Archipelago. Canadian Journal of Earth Sciences 20(9):1470-1475 [A. Miller/K. Layou/K. Layou]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 33323: authorized by Arnold Miller, entered by Karen Layou on 25.07.2003

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Cephalopoda
 Ammonitida - Hildoceratidae
"Protogrammoceras paltum" = Protogrammoceras (Paltarpites) paltum
"Protogrammoceras paltum" = Protogrammoceras (Paltarpites) paltum Buckman 1922 ammonite