Skinhead Lake (Jurassic of Canada)

Where: British Columbia, Canada (54.8° N, 126.0° W: paleocoordinates 30.3° N, 68.2° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Hazelton Group, Pliensbachian (190.8 - 182.7 Ma)

• late Pliensbachian

• bed-level stratigraphic resolution

Environment/lithology: marine; tuff and volcaniclastic sandstone

• volcanic rocks with minor intercalated sediments. The basal volcanic unit, overlying sandstone and siltstone is a volcanic breccia (tuffs). Fossils come from a volcanogenic sandstone intercalation above the dated volcanic unit.

Size class: macrofossils

Primary reference: J. Palfy, P. L. Smith, and J. K. Mortensen. 2000. A U-Pb and 40Ar/39Ar time scale for the Jurassic. Canadian Journal of Earth Sciences 37(6):923-944 [J. Alroy/J. Alroy/J. Alroy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 37550: authorized by John Alroy, entered by Erin Leckey on 16.03.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

 Pectinida - Neitheoidae
Weyla sp. Böhm 1920 scallop
 Unionata -
"Trigonioida indet." = Trigoniida
"Trigonioida indet." = Trigoniida Dall 1889 clam
 Ammonitida - Hildoceratidae
Arieticeras sp. Seguenza 1885 ammonite
 Ammonitida - Eoderoceratidae
Fanninoceras sp. McLearn 1930 ammonite
Anthozoa indet. Ehrenberg 1834
"solitary corals"