Stage

Substage

Western Siberia

Western Canada

Northern Alaska

Podobina (2000, 2009)

Peace River Alberta (Stelck and Wall, 1954, 1955)

Central Alberta (Wall, 1967)

Vermilion Area, Alberta (Nauss, 1947)

Northern regions (Tappan, 1960, 1962)

Horizon

Micropaleontological zones

Formations and members

Micropaleon-tological zones

Formations and members

Micropaleontological zones

Formations and members

Micropaleon-tological zones

Formations and members

Micropaleontological zones

Turonian

upper

kusnetzovskian

Pseudoclavulina hastata

Cardium

unknown

Cardium

unknown

Lloydm Inster

unknown

Seabbe

Ayiyak member

Pseudoclavulina hastata, Arenobulimina (?) torula

Blackstone

Opabium member

Pseudoclavulina sp. (P. hastata)

Kaskapau

Haven member

lower

Gaudryinopsis angustus

Pelagic, Haplophragmoides spiritensis

Vimy member

Lower Pelagic

Rugoglobigerina, Haplophragmoides (?) collyra

Lower member

unknown

Cenomanian

upper

uvatskian

Trochammina wetteri tumida, Verneuilinoides kansasensis

Danvegan

Ammobaculites pacalis

Sunkay member

unknown

Haplophragmoides gigas

Ninuluk

Gaudryina (?) irenensis, Trochammina rutherfordi

Shaftesbury

Gaudryina (?) irenensis

Verneuilinoides kansasensis