#class_Filicopsida__Filicopsida__Filicinae__class_Filicinae  ferns
  member:  #fern  #family_Schizaeaceae  #family_Marsileaceae  #family_Salviniaceae  #order_Ophioglossales  #order_Filicales  #family_Adiantaceae  #family_Cyatheaceae  #family_Davalliaceae  #family_Dennstaedtiaceae  #family_Dryopteridaceae  #family_Lomariopsidaceae  #family_Lophosoriaceae  #family_Loxomataceae  #order_Marattiales  #family_Cryptogrammataceae  #family_Thelypteridaceae
  member of:  #division_Pteridophyta
  supertype:  #class__clas  (biology) a taxonomic group containing one or more orders
     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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