GSC 39368, Kingak Fm, north of Bonnet Lake, northern Yukon (Jurassic of Canada)

Where: Yukon, Canada (68.3° N, 137.7° W)

• Paleocoordinates: 51.7° N, 50.9° W (Wright 2013)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Kingak Formation, Pliensbachian (192.9 - 184.2 Ma)

Environment/lithology: marine; shale and siltstone

• Table 1 of the text gives broad lithological descriptions of formations in the study area. The Kingak Formation is predominantly shale and siltstone.

Size class: macrofossils

Reposited in the GSC

Collection methods: surface (in situ),

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 34183: authorized by Arnold Miller, entered by Karen Layou on 21.08.2003

Creative Commons license: CC0 (CC0)

Taxonomic list

Show authors, comments, and common names
Crinoidea
 Isocrinida - Pentacrinitidae
"Seirocrinus" sp.
"Seirocrinus" sp. Gislen 1924 Sea lily
Bivalvia
 Pholadida - Corbulidae
? Corbula sp.
? Corbula sp. Bruguière 1789 clam
 Pectinida - Plicatulidae
? Plicatula sp., Harpax laevigatus
? Plicatula sp. Lamarck 1801 scallop
 Ostreida - Gryphaeidae
Gryphaea sp.
Gryphaea sp. Lamarck 1801 oyster
Cephalopoda
 Ammonitida - Liparoceratidae
? Pleuroceras sp., Amaltheus stokesi, Amaltheus bifurcus
? Pleuroceras sp. Hyatt 1868 ammonite
Amaltheus stokesi Sowerby 1818 ammonite
Amaltheus bifurcus Howarth 1958 ammonite
 Belemnitida - Belemnotheutidae
"Belemnoteuthis sp." = Acanthoteuthis
"Belemnoteuthis sp." = Acanthoteuthis Wagner in Munster 1839 belemnite