sentences:  Other special characteristics of this family are that no outgrowths are developed to form a hinge between both valves, nor is there any support for the lophophore.As adults, craniids either lived free on the ocean floor or, more commonly, were attached to a hard object with all or part of the ventral valve.All other brachiopods are supposed to have a stalk or pedicle, at least as an adolescent, but in craniids a pedicle is not known from any development stage.