#amphibian_family__amphibianfamily  any family of amphibians
  subtype:  family_Salamandridae  family_Ambystomatidae  family_Cryptobranchidae  family_Dicamptodontidae  family_Plethodontidae  family_Amphiumidae  family_Sirenidae  family_Ranidae  family_Leptodactylidae  family_Polypedatidae  family_Ascaphidae  family_Leiopelmatidae  family_Bufonidae  family_Discoglossidae  family_Pelobatidae  family_Hylidae  family_Microhylidae  family_Pipidae  family_Xenopodidae  family_Caeciliidae
  member of:  subphylum_Vertebrata
  supertype:  family  (biology) a taxonomic group containing one or more genera; "sharks belong to the fish family"
     supertype:  taxonomic_group__taxonomicgroup__taxon  animal or plant group having natural relations
        supertype:  biological_group  a group of plants or animals
           supertype:  group__grouping  any number of entities (members) considered as a unit
              supertype:  collection  something gathering separated things (entities/situations)
                 supertype:  divisible_entity__divisibleentity  many classifications under this category are application-dependant
                    supertype:  entity  something that can be "involved" in a situation
                       supertype:  thing__something___T__t___3D_or_4D_thing_or_anything_else  any category (type or individual) is instance of this type; any type is also a subtype of this type
                    supertype:  divisible_thing__divisiblething
                       supertype:  thing__something___T__t___3D_or_4D_thing_or_anything_else  any category (type or individual) is instance of this type; any type is also a subtype of this type

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