Idiophyseter

Idiophyseter is a genus of macroraptorial sperm whale from the Miocene. Its fossils have been found in Templeton California. Idiophyseter was small in size compared to modern genera and its maxilla has single-rooted alveoli. It lacked ventral internal process of the sort present in the modern day genus of sperm whale (Physeter).

References

1. Cuvier's beaked whale
2. Macroraptorial sperm whale
3. Narwhal
4. Physeteroidea
5. Beluga whale
6. Porpoise
7. Baiji
8. Pilot whale
9. Bottlenose dolphin
10. Livyatan
11. Haborodelphis
12. Bottlenose whale
13. Oceanic dolphin
14. Beaked whale
15. Melon-headed whale
16. Zygophyseter
17. Monodontidae
18. South Asian river dolphin
19. Mesoplodon
20. Lipotidae