Eumorphoceras
(tree size 31)
Girtyoceras
(tree size 23)
Sulcogirtyoceras
Tumulites
(tree size 2)
Winchelloceras
(tree size 3)
Hudsonoceras
(tree size 1)
Peytonoceras
Sagittoceras
(tree size 2)
Cowdaleoceras
Dryochoceras
(tree size 1)
Medioloboceras
Calygirtyoceras
(tree size 5)
Edmooroceras
Cousteauceras
Zhongningoceras
Torulites
Pseudogirtyoceras
Sundernites