Classification of the species Orthis hirnantensis
†Eostropheodonta hirnantensis M'Coy 1851
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†Eostropheodonta hirnantensis hirnantensis McCoy 1851
Invalid names: Eostropheodonta siluriana Davidson 1871 [synonym], Eostropheodonta whittingtoni Bancroft 1949 [synonym]