app/models/nomenclatural_rank/iczn/genus_group/supergenus.rb
class NomenclaturalRank::Iczn::GenusGroup::Supergenus < NomenclaturalRank::Iczn::GenusGroup
def self.parent_rank
NomenclaturalRank::Iczn::FamilyGroup::Infratribe
end
def self.typical_use
false
end
def self.abbreviation
'supergen.'
end
end