GSC 92515, Kingak Fm, Johnson Creek, northern Yukon (Jurassic to of Canada)

Where: Yukon, Canada (68.1° N, 138.1° W: paleocoordinates 64.4° N, 53.1° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Kingak Formation, Toarcian to Toarcian (182.7 - 170.3 Ma)

Environment/lithology: marine; shale and siltstone

• Table 1 gives broad lithologic descriptions of the formations in the study area. The Kingak Fm is predominantly shale and siltstone, though during the Aalenian it includes sandstone.

Size class: macrofossils

Reposited in the GSC

Collection methods: surface (float),

Primary reference: T.P. Poulton. 1991. Hettangian through Aalenian (Jurassic) guide fossils and biostratigraphy, Northern Yukon and adjacent Northwest Territories. Geological Survey of Canada Bulletin (410)1-95 [A. Miller/K. Layou/K. Layou]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 34207: authorized by Arnold Miller, entered by Karen Layou on 21.08.2003

Creative Commons license: CC BY (attribution)

Taxonomic list

 Ammonitida - Graphoceratidae
 Ammonitida - Hildoceratidae
"Pseudolioceras lectum" = Pseudolioceras (Pseudolioceras) boulbiense Young and Bird 1822 ammonite