Diagonal Mountain 1a, Smithers Formation (Jurassic to of Canada)

Where: British Columbia, Canada (56.7° N, 127.3° W: paleocoordinates 37.6° N, 69.5° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Smithers Formation (Hazelton Group), Toarcian to Toarcian (182.7 - 168.3 Ma)

• late Toarcian-Early Bajocian, approx. 25 m below the sampled tuff

• bed-level stratigraphic resolution

Environment/lithology: marine; fine-grained siliciclastic sediments and tuff

• colour-banded fine clastics interbedded with rare tuff layers

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 37610: authorized by John Alroy, entered by Erin Leckey on 18.03.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

 Ammonitida - Hildoceratidae