| Extant Holocephali |
| Hydrolagus colliei |
| Chimaera phantasma |
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| J-elasmo | FUM IO NAKAGAWA | |||
| Discussion |
| Test M |
| Test C |
| Fossil Shark Assemblages | ||
Cretaceous |
Ashizawa | |
Eocene |
Kawamagari | |
Oligocene |
Shiramizu | |
| Ashiya | ||
| Ashiya II | ||
Miocene |
Ichisi | |
| Senhata | ||
| Aoso | ||
| Haratajino | ||
| Kuzubukuro | ||
Pliocene |
Naarai | |
| Okinawa | ||
| Tomioka | ||
| Kakegawa | ||
| Toyooka | ||
Pleistocene |
Ichijyuku | |
| Fossil Rays & Holocephali |
| Rays I |
| Rays II |
| Holocephali |