#amphibian_genus__amphibiangenu  any genus of amphibians
  subtype:  #genus_Hynerpeton  #genus_Ichthyostega  #genus_Salamandra  #genus_Triturus  #genus_Notophthalmus  #genus_Taricha  #genus_Ambystoma  #genus_Cryptobranchus  #genus_Megalobatrachus  #family_Proteidae  #genus_Proteus  #genus_Necturus  #genus_Dicamptodon  #genus_Rhyacotriton  #genus_Plethodon  #genus_Desmograthus  #genus_Aneides  #genus_Batrachoseps  #genus_Hydromantes  #genus_Amphiuma  #genus_Siren  #genus_Rana  #genus_Eleutherodactylus  #genus_Hylactophryne  #genus_Leptodactylus  #genus_Polypedates  #genus_Ascaphus  #genus_Leiopelma  #genus_Bufo  #genus_Alytes  #genus_Bombina  #genus_Scaphiopus  #genus_Hyla  #genus_Acris  #genus_Pseudacris  #genus_Pternohyla  #genus_Gastrophryne  #genus_Hypopachus  #genus_Pipa  #genus_Xenopus
  member of:  #subphylum_Vertebrata
  supertype:  #genus__genu  (biology) taxonomic group containing one or more species
     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:  pm#collection  something gathering separated things (entities/situations)
                 supertype:  pm#divisible_entity__divisibleentity  many classifications under this category are application-dependant
                    supertype:  pm#entity  something that can be "involved" in a situation
                       supertype:  pm#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:  pm#divisible_thing__divisiblething
                       supertype:  pm#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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