·Biota
·Eukaryota
·Animalia
·Brachiopoda
·Rhynchonelliformea
·Rhynchonellata
·Spiriferida
·Spiriferidina
·Spiriferoidea
·Spiriferidae
·Sergospiriferinae
·Anthracospirifer
·Anthracospirifer curvilateralis
SSAnthracospirifer curvilateralis tanoensisCurrent