Evolved from Krakowhydra velox, T. grandibucha is well adapted to filter-feeding. Its unique tail is composed of several cells twisted together into a sort of rudimentary proto-muscle. This allows it to swim against the drag created by its large filter-flaps. The chemoreceptors remain relatively unchanged but are now positioned so as to allow '3D smell' whereby the direction from which a signal is strongest can be deduced. This information is relayed to the tail by means of a chemical chain, prompting changes in swimming behavior. Reproduction once again involves the dispersal of spores.
Living Relatives (click to show/hide)
None found. Note that this does not necessarily mean it has no living relatives at all, but that, assuming all taxonomy is filled in, its entire phylum is extinct; any relatives it does have likely do not resemble it.