Abstract

Pliensbachian ammonite faunas recorded from British Columbia and southern Yukon contain Crucilobiceras, Phricodoceras, Uptonia, Platypleuroceras?, Acanthopleuroceras, Tropidoceras, Becheiceras, Amaltheus, Pleuroceras?, Prodactylioceras, Dactylioceras?, Arieticeras, Leptaleoceras, and Paltarpites. They indicate the presence of all of the Pliensbachian ammonite zones and most subzones of the northwest European standard section. However, in no single area of western Canada has such a complete succession been established.

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