Where: British Columbia, Canada (53.6° N, 127.1° W: paleocoordinates 36.7° N, 69.7° W)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Smithers Formation (Hazelton Group), Aalenian (174.1 - 170.3 Ma)
• late Aalenian, approx. 120 m from bottom of section
• bed-level stratigraphic resolution
Environment/lithology: marine; tuffaceous shale and shelly/skeletal, sandy siltstone
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 37624: authorized by John Alroy, entered by Erin Leckey on 18.03.2004
Creative Commons license: CC BY (attribution)
Taxonomic list
Cephalopoda | |
Tmetoceras cf. kirki ammonite |