Hipponicidae
Hipponix bistriatus (Grateloup, 1827) Miocene France
Hipponix ceras Woodring, 1928 Miocene Venezuela
Hipponix conicus Pleistocene Mexico Pleistocene Egypt
Hipponix cornucopiae Lamarck, 1802 Eocene England Eocene France T
Hipponix spinellii Eocene Italy
Hipponix spirirostris (Lamarck, 1802) Eocene France
Hipponis striatus Eocene Italy
Letptonotis squamaeformis (Lamarck, 1802) Eocene England Eocene France
