| Province Nord Ouest Européenne |
Divisions | Zones | Sous-zones | Horizons |
Toarcien supérieur | Pleydellia aalensis | Walkericeras lugdunensis | Pleydellia buckmanni |
Walkericeras lugdunensis |
Pleydellia mactra | Pleydellia celtica |
Pleydellia mactra |
Paradumortieria tectiforme |
Dumortieria pseudoradiosa | Dumortieria pseudoradiosa | Dumortieria pseudoradiosa |
Dumortieria levesquei | Dumortieria munieri |
Dumortieria insignisimilis |
Phlyseogrammoceras dispansum | Gruneria gruneri | Gruneria gruneri |
Hammatoceras insigne
| Hammatoceras pachu |
Hammatoceras cappucinum |
Grammoceras thouarsense | Pseudogrammoceras fallaciosum
| Pseudogrammoceras fallaciosum |
Esericeras fascigerum | Esericeras fascigerum |
Grammoceras thouarsense | Grammoceras thouarsense |
Pseudogrammoceras doerntense |
Pseudogrammoceras bingmanni | Pseudogrammoceras bingmanni |