GSC 92518, Kingak Fm, Johnson Creek, northern Yukon (Jurassic of Canada)

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

• Paleocoordinates: 51.5° N, 51.2° W (Wright 2013)

• coordinate stated in text

• small collection-level geographic resolution

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

• collection from Gryphaea beds

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.

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 34210: 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
Rhynchonellata
 Terebratulida -
Terebratulida indet.
 Rhynchonellida -
Rhynchonellida indet.
Bivalvia
 Pholadida - Pleuromyidae
? Pleuromya sp.
? Pleuromya sp. Meek 1873 clam
 Pectinida - Oxytomidae
Oxytoma sp.
Oxytoma sp. Meek and Hayden 1865 scallop
 Pectinida - Pectinoidae
? Chlamys sp.
? Chlamys sp. Röding 1798 scallop
 Ostreida - Gryphaeidae
Gryphaea sp.
Gryphaea sp. Lamarck 1801 oyster
Crinoidea
  -
Crinoidea indet.
Crinoidea indet. Miller 1821 Sea lily