1. Ceratozamia hofmanni Austria, Miocene
2. Zamites epibuis France, Miocene
3. Anomozamites muelleri
    New South Wales, Australia, Lower (?) Eocene
4. Zamia tennesseana Tennessee, Lower Eocene

(Above) Zamia collazoiensis
Puerto Rico, Upper Eocene or Oligocene

(Above) Ceratozamia vicetinus
Switzerland, Oligocene

(pinnae detail at right)

1. Zamia collazensis Puerto Rico & Virgin Islands, Upper Eocene or Oligocene
2. Zamia tertiara Chile, Lower (?) Miocene
3. Zamia paleocenicus Belgium, Paleocene
(details of leaf median and tip)