app/models/nomenclatural_rank/iczn/higher_classification_group/cohort.rb
class NomenclaturalRank::Iczn::HigherClassificationGroup::Cohort < NomenclaturalRank::Iczn::HigherClassificationGroup
def self.parent_rank
NomenclaturalRank::Iczn::HigherClassificationGroup::Supercohort
end
def self.typical_use
false
end
end