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

Where: Yukon, Canada (68.1° N, 138.1° W: paleocoordinates 60.6° N, 54.3° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Kingak Formation, Pliensbachian (190.8 - 182.7 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: CC BY (attribution)

Taxonomic list

Bivalvia
 Pectinida - Pectinoidae
? Chlamys sp. Röding 1798 scallop
 Pectinida - Oxytomidae
Oxytoma sp. Meek 1864 scallop
 Ostreida - Gryphaeidae
Gryphaea sp. Lamarck 1801 oyster
 Pholadida - Pleuromyidae
? Pleuromya sp. Agassiz 1845 clam
Crinoidea
  -
Crinoidea indet. Miller 1821 Sea lily
Rhynchonellata
 Terebratulida -
 Rhynchonellida -