Definition that contains skeletal frame
- sponge primitive multicellular marine animal whose porous body is supported by a fibrous skeletal framework; usually occurs in sessile colonies
- parazoan primitive multicellular marine animal whose porous body is supported by a fibrous skeletal framework; usually occurs in sessile colonies
- poriferan primitive multicellular marine animal whose porous body is supported by a fibrous skeletal framework; usually occurs in sessile colonies