Acrochordiceras
(tree size 28)
Paracrochordiceras
(tree size 11)
Haydenites
Epacrochordiceras
(tree size 2)
Bradyia
(tree size 2)
Columboceras
(tree size 1)
Pseudacrochordiceras
(tree size 1)
Globacrochordiceras
(tree size 1)
Eoacrochordiceras
Caucasochordiceras