Todagin Mountian (lower unit), Hazelton Group (Jurassic of Canada)

Where: British Columbia, Canada (57.6° N, 130.1° W: paleocoordinates 32.5° N, 71.7° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

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

• bed-level stratigraphic resolution

Environment/lithology: marine; tuff and shelly/skeletal, silty, sandy shale

• basaltic to rhyolitic volcanic suite with common, predominantly fine-grained sedimentary intercalations. quartz-phyric lapilli tuff, underlain and overlain by shale, siltstone and sandstone

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 37552: authorized by John Alroy, entered by Erin Leckey on 16.03.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Cephalopoda
 Ammonitida - Eoderoceratidae
Dubariceras freboldi
Dubariceras freboldi Dommergues et al. 1984 ammonite