Species:
Tihkia karrooensis >
Genus:
Tihkia >
Family:
Silesunionidae >
Superfamily:
Silesunionoidea >
Order:
Unionida >
Subterclass:
Palaeoheterodonta >
Infraclass:
Heteroconchia >
Subclass:
Autobranchia >
Class:
Bivalvia >
Phylum:
Mollusca >
Kingdom:
Animalia >
Unranked:
Biota >