Litostratigrafie
Devon
| Givet | Ipperwash formation Widder formation Hungry Hollow formation Arkona formation Rockport Quarry formation Bell formation Dundee formation |
Silur
Bez zařazení do stupně
Williamsville formation (Svrchní silur), Irondequoit limestone (Wenlock), Eramosa formation (Wenlock), Rochester shale (Wenlock)
Ordovik
| Katian | Georgian Bay formation Blue Mountain formation Cobourg formation Bobcaygeon formation Collingwood Shale formation Kirkfield formation Verulam formation Lindsay formation |
| Sandbian | Lowville formation |