The lifestyle and habits of Cameroceras can only be surmised. They were almost certainly stalkers and ambush predators that moved across the sea floor or lay in wait. The large rigid shell would have made maneuvering difficult. The larger ones especially were probably not active swimmers. The very largest may have remained on the bottom without ever changing position.[5]
As with all endoceratids Cameroceras was weighted so as to be horizontally stable. This would have been achieved by the endocones in the apical portion of the siphuncle that would have compensated for the visceral mass forward in the body chamber. The endocones would also have sealed off the more apical chambers from the siphuncle limiting changes in ballast to the more forward, centrally located, chambers. This result is that changes in buoyancy would have had little effect on horizontal stability.[5]
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