Taxonomic opinions tied to this reference:

• Acrosaccus belongs to Orbiculoideinae

• Acrotreta belongs to Acrotretidae

• Acrotretella belongs to Torynelasmatidae

• Acrotretida belongs to Lingulata

• Acrotretidae belongs to Acrotretoidea

• Acrotretoidea belongs to Acrotretida

• Atansoria belongs to Obolinae

• Atansoria concava belongs to Atansoria

• Conotreta belongs to Acrotretidae

• Conotreta chernovi belongs to Conotreta

• Dictyonites belongs to Paterinidae

• Disciniidae belongs to Discinoidea

• Discinoidea belongs to Lingulida

• Ephippelasma belongs to Ephippelasmatidae

• Ephippelasmatidae belongs to Acrotretoidea

• Foveola belongs to Obolinae

• Lingulata belongs to Linguliformea

• Lingulida belongs to Lingulata

• Linguloidea belongs to Lingulida

• Naimania belongs to Torynelasmatidae

• Obolidae belongs to Linguloidea

• Obolinae belongs to Obolidae

• Orbiculoideinae belongs to Disciniidae

• Paterinata belongs to Linguliformea

• Paterinida belongs to Paterinata

• Paterinidae belongs to Paterinoidea

• Paterinoidea belongs to Paterinida

• Rhysotreta belongs to Scaphelasmatidae

• Scaphelasma belongs to Scaphelasmatidae

• Scaphelasmatidae belongs to Acrotretoidea

• Schizotreta belongs to Orbiculoideinae

• Torynelasmatidae belongs to Acrotretoidea

• Trematidae belongs to Discinoidea

• Trematis belongs to Trematidae