GSC 92586, Kingak Fm, north of Bonnet Lake, northern Yukon (Jurassic of Canada)

Where: Yukon, Canada (68.3° N, 137.8° W: paleocoordinates 60.5° N, 53.8° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Kingak Formation, Pliensbachian (190.8 - 182.7 Ma)

Environment/lithology: marine; shale and siltstone

• Table 1 gives broad lithological descriptions of formations within the study area. The Kingak Fm is predominantly shale and siltstone. Sample from "concretions and interbeds, loose on a slope of black fissile shale.

Size class: macrofossils

Preservation: concretion

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 34222: authorized by Arnold Miller, entered by Karen Layou on 22.08.2003

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Crinoidea
 Isocrinida - Pentacrinitidae
Seirocrinus aff. subangularis
Seirocrinus aff. subangularis Miller 1821 Sea lily
Rhynchonellata
 Spiriferinida - Spiriferinidae
? Spiriferina sp.
? Spiriferina sp. d'Orbigny 1847
 Rhynchonellida - Cyclothyrididae
Rudirhynchia sp.
Rudirhynchia sp. Buckman 1917
Bivalvia
  -
Bivalvia indet.
Bivalvia indet. Linnaeus 1758 clam
 Ostreida - Gryphaeidae
? Gryphaea sp.
? Gryphaea sp. Lamarck 1801 oyster
 Pectinida - Pectinoidae
Camptonectes (Camptochlamys) sp.
 Pectinida - Limidae
? Lima sp.
? Lima sp. Bruguière 1797 file clam
 Pectinida - Oxytomidae
? Meleagrinella sp., Oxytoma sp., "Oxytoma (Oxytoma) cygnipes" = Oxytoma (Palmoxytoma) cygnipes
? Meleagrinella sp. Whitfield 1855 scallop
Oxytoma sp. Meek and Hayden 1865 scallop
"Oxytoma (Oxytoma) cygnipes" = Oxytoma (Palmoxytoma) cygnipes Young and Bird 1822 scallop
 Pectinida - Entoliidae
Entolium sp.
Entolium sp. Meek 1865 scallop
 Cardiida - Glossidae
? Isocardia sp.
? Isocardia sp. Lamarck 1799 clam
 Thraciida - Thraciidae
? Thracia sp.
? Thracia sp. Blainville 1824 clam
Cephalopoda
 Ammonitida - Liparoceratidae
Amaltheus stokesi, Amaltheus bifurcus
Amaltheus stokesi Sowerby 1818 ammonite
Amaltheus bifurcus Howarth 1958 ammonite