Sous-étage Zones Sous-zones Horizons
Supérieur Pleydellia aalensis Walkericeras lugdunensis Pleydellia buckmanni
Walkericeras lugdunensis
Pleydellia mactra Pleydellia celtica
Pleydellia mactra
Paradumortieria tectiforme
Dumortieria pseudoradiosa Dumortieria pseudoradiosa Dumortieria munieri
Dumortieria levesquei Dumortieria insignisimilis
Plyseogrammoceras dispansum Gruneria gruneri Gruneria gruneri
Hammatoceras isigne Hammatoceras pachu
Hammatoceras cappucinum
Grammoceras thouarsense Pseudogrammoceras fallaciosum Pseudogrammoceras fallaciosum
Esericeras fascigerum Esericeras fascigerum
Grammoceras thouarsense Grammoceras thouarsense
Pseudogrammoceras doerntense
Pseudogrammoceras bingmanni Pseudogrammoceras bingmanni
Moyen Haugia variabilis Haugia vitiosa Haugia vitiosa
Haugia illustris Haugia phillipsi
Haugia illustris
Haugia variabilis Haugia jugosa
Haugia navis
Hildoceras bifrons Hildoceras bifrons Hildoceras semipolitum
Hildoceras bifrons
Hildoceras apertum
Hildoceras lusitanicum
Hildoceras sublevisoni Hildoceras tethysi
Hildoceras sublevisoni
Inférieur Harpoceras serpentinum Harpoceras falciferum Orthildaites douvillei
Harpoceras pseudoserpentinum
Eleganticeras elegantulum Harpoceras strangewaysi
Eleganticeras elegantulum
Dactylioceras tenuicostatum Dactylioceras semicelatum Dactylioceras semicelatum
Dactylioceras tenuicostatum
Dactylioceras crosbeyi
Paltarpites paltus Paltarpites paltus