GSC 92515, Kingak Fm, Johnson Creek, northern Yukon: Toarcian - Aalenian, Canada

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Cephalopoda - Ammonitida - Hildoceratidae
Pseudolioceras lectum (Simpson 1843)
Cephalopoda - Ammonitida - Graphoceratidae
? Leioceras sp.
see common names

Geography
Country:Canada State/province:Yukon
Coordinates: 68.1° North, 138.1° West (view map)
Paleocoordinates:64.4° North, 53.1° West
Basis of coordinate:stated in text
Geographic resolution:small collection
Time
Period: Jurassic Epoch: Early Jurassic - Middle Jurassic
Stage: Toarcian - Aalenian 10 m.y. bin: Jurassic 3
Key time interval: Toarcian - Aalenian
Age range of interval: 184.2 - 170.9 m.y. ago
Stratigraphy
Formation:Kingak
Lithology and environment
Primary lithology: "shale"
Secondary lithology: siltstone
Lithology description: 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.
Environment:marine indet.
Taphonomy
Size of fossils:macrofossils
Collection methods and comments
Collection methods:surface (float),field collection
Reason for describing collection:biostratigraphic analysis
Museum repositories:GSC
Metadata
Database number:34207
Authorizer:A. Miller Enterer:K. Layou
Modifier:K. Layou Research group:marine invertebrate
Created:2003-08-21 19:36:45 Last modified:2003-08-21 22:36:45
Access level:the public Released:2003-08-21 19:36:45
Creative Commons license:CC BY
Reference information

Primary reference:

8997. 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]