Opinions from A. Bittner 1890
- 'Aulacothyris was reranked as Waldheimia (Aulacothyris) and belongs to Waldheimia'
- 'Coenothyris was reranked as Terebratula (Coenothyris) and belongs to Terebratula'
- 'Delthyris flabelliformis belongs to Delthyris' according to Zenker 1834
- 'Delthyris flabelliformis is a subjective synonym of Spiriferina fragilis'
- 'Discina discoides belongs to Discina' according to Schlotheim 1820
- 'Lingula tenuissima belongs to Lingula'
- 'Retzia beneckei belongs to Retzia'
- 'Retzia mojsisovicsi belongs to Retzia'
- 'Retzia schwageri belongs to Retzia'
- 'Retzia speciosa belongs to Retzia'
- 'Rhynchonella altaplecta [misspelled as Rhynchonella alteplecta] belongs to Rhynchonella'
- 'Rhynchonella arcula belongs to Rhynchonella'
- 'Rhynchonella attilina belongs to Rhynchonella'
- 'Rhynchonella cimbrica belongs to Rhynchonella'
- 'Rhynchonella dalmatina belongs to Rhynchonella'
- 'Rhynchonella delicatula belongs to Rhynchonella'
- 'Rhynchonella ottomana belongs to Rhynchonella'
- 'Rhynchonella pironiana belongs to Rhynchonella'
- 'Rhynchonella pretiosa belongs to Rhynchonella' according to Boeckh 1876
- 'Rhynchonella pretiosa belongs to Rhynchonella'
- 'Rhynchonella productifrons belongs to Rhynchonella'
- 'Rhynchonella projectifrons belongs to Rhynchonella'
- 'Rhynchonella protractifrons belongs to Rhynchonella'
- 'Rhynchonella refractifrons belongs to Rhynchonella'
- 'Rhynchonella retractifrons belongs to Rhynchonella'
- 'Rhynchonella tetractis belongs to Rhynchonella' according to Loretz 1875
- 'Rhynchonella tetractis is recombined as Spirigera tetractis'
- 'Rhynchonella teutonica belongs to Rhynchonella'
- 'Rhynchonella tommasii belongs to Rhynchonella'
- 'Rhynchonella trinodosi belongs to Rhynchonella'
- 'Rhynchonella vivida belongs to Rhynchonella'
- 'Rhynchonella volitans belongs to Rhynchonella'
- 'Spirifer mentzeli is recombined as Spiriferina (Mentzelia) mentzelii'
- 'Spiriferina (Mentzelia) balatonica belongs to Spiriferina (Mentzelia)'
- 'Spiriferina (Mentzelia) pannonica belongs to Spiriferina (Mentzelia)'
- 'Spiriferina avarica belongs to Spiriferina'
- 'Spiriferina canavarica belongs to Spiriferina'
- 'Spiriferina dinarica belongs to Spiriferina'
- 'Spiriferina koeveskalyensis is recombined as Spiriferina (Mentzelia) koeveskalliensis'
- 'Spiriferina manca belongs to Spiriferina'
- 'Spiriferina paleotypus is recombined as Spiriferina (Mentzelia) palaeotypus'
- 'Spiriferina pectinata belongs to Spiriferina'
- 'Spiriferina peneckei belongs to Spiriferina'
- 'Spiriferina pia belongs to Spiriferina'
- 'Spiriferina ptychitiphila belongs to Spiriferina'
- 'Spiriferina terzadica belongs to Spiriferina'
- 'Spirigera forojulensis belongs to Spirigera'
- 'Spirigera marmorea belongs to Spirigera'
- 'Spirigera sturi belongs to Spirigera' according to Boeckh 1873
- 'Spirigera sturi is recombined as Pexidella sturi'
- 'Spirigera venetiana belongs to Spirigera'
- 'Terebratula decurtata is recombined as Rhynchonella decurtata'
- 'Terebratula fragilis is recombined as Spiriferina fragilis'
- 'Terebratula laricimontana belongs to Terebratula'
- 'Terebratula mentzelii is recombined as Rhynchonella mentzelii'
- 'Terebratula schloenbachii is recombined as Spirigera schloenbachi'
- 'Terebratula sturi belongs to Terebratula' according to Laube 1865
- 'Terebratula sturi belongs to Terebratula'
- 'Terebratula suborbicularis belongs to Terebratula'
- 'Terebratula sulcifera is recombined as Terebratula (Waldheimia) sulcifera'
- 'Terebratulites angustus is recombined as Waldheimia (Aulacothyris) angusta'
- 'Terebratulites parasiticus is a subjective synonym of Spiriferina fragilis'
- 'Terebratulites parasiticus belongs to Terebratulites' according to Schlotheim 1813
- 'Terebratulites trigonellus is recombined as Spirigera trigonella'
- 'Terebratulites vulgaris is recombined as Terebratula (Coenothyris) vulgaris'
- 'Thecidium cymbula belongs to Thecidium'
- 'Waldheimia was reranked as Terebratula (Waldheimia) and belongs to Terebratula'
- 'Waldheimia angustaeformis belongs to Waldheimia'