Opinions from A. A. Shevyrev 2006
- 'Agoniatitida is a subjective synonym of Anarcestida'
- 'Agoniatitina belongs to Anarcestida'
- 'Ammonitida belongs to Ammonoidea'
- 'Ammonoidea belongs to Cephalopoda'
- 'Anarcestida belongs to Ammonoidea'
- 'Anarcestina belongs to Anarcestida'
- 'Ancylocerina belongs to Ammonitida'
- 'Arcestina belongs to Ceratitida'
- 'Auguritina belongs to Anarcestida'
- 'Bactritida belongs to Bactritoidea'
- 'Cardiocerina belongs to Ammonitida'
- 'Ceratitida belongs to Ammonoidea'
- 'Ceratitina belongs to Ceratitida'
- 'Clymeniida belongs to Ammonoidea'
- 'Clymeniina belongs to Clymeniida'
- 'Cyclolobina belongs to Goniatitida'
- 'Gephuroceratina [misspelled as Gephurocerina] belongs to Anarcestida'
- 'Goniatitida belongs to Ammonoidea'
- 'Goniatitina belongs to Goniatitida'
- 'Gonioclymeniina belongs to Clymeniida'
- 'Haplocerina belongs to Ammonitida'
- 'Lituitida belongs to Nautiloidea'
- 'Lobitina belongs to Ceratitida'
- 'Lytocerida belongs to Ammonoidea'
- 'Lytocerina belongs to Lytocerida'
- 'Medlicottiida belongs to Ammonoidea'
- 'Meekocerina belongs to Ceratitida'
- 'Megaphyllitina belongs to Ceratitida'
- 'Otocerina belongs to Ceratitida'
- 'Paraceltitina belongs to Ceratitida'
- 'Phyllocerida belongs to Ammonoidea'
- 'Pinacocerina belongs to Ceratitida'
- 'Praeglyphiocerida belongs to Ammonoidea'
- 'Prolecanitina belongs to Anarcestida'
- 'Psilocerina belongs to Ammonitida'
- 'Ptychitina belongs to Ceratitida'
- 'Sagecerina belongs to Ceratitida'
- 'Stephanocerina belongs to Ammonitida'
- 'Timanocerina belongs to Anarcestida'
- 'Tornoceratina was reranked as the suborder Tornocerida and belongs to Ammonoidea'
- 'Turrilitina belongs to Lytocerida'