 Unlike its relative, however, the various species of "Titanichys" had small, ineffective-looking mouth-plates that lacked a sharp cutting edge.It is assumed that "Titanichthys" was a filter feeder that used its capacious mouth to swallow or inhale schools of small, anchovy-like fish, or possibly krill-like zooplankton, and that the mouth-plates retained the prey while allowing the water to escape as it closed its mouth.A study has since confirmed this assumption as its jaws are functionally closer to that of filter feeders like baleen whales and basking sharks, and it appears to have developed from benthic durophagists that became pelagic suspension feeders.