Opinions from O. Rieppel 1998
- 'Ceresiosaurus is a subjective synonym of Lariosaurus'
- 'Ceresiosaurus calcagnii belongs to Ceresiosaurus' according to Peyer 1931
- 'Ceresiosaurus calcagnii is recombined as Lariosaurus calcagnii'
- 'Deirosaurus is a subjective synonym of Lariosaurus'
- 'Deirosaurus italicus is a subjective synonym of Lariosaurus balsami'
- 'Eosauropterygia belongs to Sauropterygia'
- 'Eupodosaurus is a subjective synonym of Lariosaurus'
- 'Eupodosaurus longobardicus is a subjective synonym of Lariosaurus balsami'
- 'Lariosaurus belongs to Nothosaurinae'
- 'Lariosaurus balsami belongs to Lariosaurus'
- 'Lariosaurus buzzii belongs to Lariosaurus'
- 'Lariosaurus curionii belongs to Lariosaurus'
- 'Lariosaurus lavizzarii is a nomen dubium'
- 'Lariosaurus lavizzarii is a subjective synonym of Lariosaurus balsami' according to Tshanz 1989
- 'Lariosaurus lavizzarii belongs to Lariosaurus' according to Kuhn-Schnyder 1987
- 'Lariosaurus valceresii belongs to Lariosaurus'
- 'Lariosaurus valceresii belongs to Lariosaurus' according to Tintori and Renesto 1990
- 'Macromerosauro is a subjective synonym of Lariosaurus'
- 'Macromerosaurus is a subjective synonym of Lariosaurus'
- 'Macromirosaurus is a subjective synonym of Lariosaurus'
- 'Macromirosaurus plini belongs to Macromirosaurus' according to Curioni 1847
- 'Macromirosaurus plinii is a subjective synonym of Lariosaurus balsami' according to Zittel 1887
- 'Macromirosaurus plini is a subjective synonym of Lariosaurus balsami'
- 'Nothosauridae belongs to Eosauropterygia'
- 'Nothosaurinae belongs to Nothosauridae'
- 'Paranothosaurus is a subjective synonym of Nothosaurus'
- 'Proneusticosaurus carinthiacus belongs to Proneusticosaurus' according to Arthaber 1924
- 'Proneusticosaurus carinthiacus is a subjective synonym of Lariosaurus balsami'
- 'Proneusticosaurus carinthiacus is recombined as Lariosaurus carinthiacus' according to Zapfe and König 1980
- 'Rhaeticonia is a subjective synonym of Lariosaurus'
- 'Rhaeticonia rothpletzi is a nomen dubium'
- 'Silvestrosaurus is a subjective synonym of Lariosaurus'