Ammonoid Eating Ratfish

DWhatley

Kraken
Staff member
Moderator
Joined
Sep 4, 2006
Messages
21,020
Bizarre, Prehistoric Ratfish Chomped Prey with Buzzsaw Jaws

...
If Helicoprion bit one of the coil-shelled ammonoids or nautiloids just right, this same process would have automatically shelled the cephalopod. In the case of a head-on bite, Ramsay and coauthors write, the back teeth of Helicoprion could have gripped the cephalopod's body while the front teeth pushed the shell out of the mouth. The overall effect, Ramsay and colleagues propose, "may have formed a novel mollusk shucking system." Helicoprion - it slices, it dices, and makes Julienne ammonoids.
 

Architeuthoceras

Architeuthis
Staff member
Moderator
Joined
Nov 19, 2002
Messages
2,460
Without a copy of the paper I can't really comment... but size and length of ammonoid soft parts and length of tooth travel don't seem to coincide.
 

Top