Brachiopoda
Genus

Horridonia Chao, 1927

Classification
Organism groupBiota
KingdomAnimalia
PhylumBrachiopoda
SubphylumRhynchonelliformea
ClassStrophomenata
OrderProductida
SuborderProductidina
SuperfamilyProductoidea
FamilyProductidae
SubfamilyLeioproductinae
TribeHorridoniini
GenusHorridonia
Specieshorridus