Opinions from V. Jaanusson and L. Ramsköld 1993
- 'Acaste exilis is recombined as Estoniops exilis'
- 'Achatella belongs to Pterygometopinae'
- 'Achatella (Achatella) belongs to Achatella' according to Delo 1935
- 'Achatella (Achatella) bailyi belongs to Achatella (Achatella)' according to Salter 1864
- 'Achatella (Vironiaspis) belongs to Achatella'
- 'Achatella consobrina is recombined as Achatella (Achatella) consobrina'
- 'Calymene sclerops is recombined as Pterygometopus sclerops'
- 'Dalmanites achates is recombined as Achatella achates'
- 'Estoniops belongs to Pterygometopinae'
- 'Estoniops bekkeri belongs to Estoniops' according to Mannil 1958
- 'Estoniops fjaeckensis belongs to Estoniops'
- 'Estoniops latus is recombined as Keilapyge latus'
- 'Estoniops maennili belongs to Estoniops'
- 'Estoniops oculeus belongs to Estoniops' according to Antsygin 1970
- 'Ingriops belongs to Pterygometopinae'
- 'Keilapyge belongs to Pterygometopinae'
- 'Oelandiops belongs to Pterygometopinae'
- 'Oelandiops mirificus belongs to Oelandiops'
- 'Phacops (Pterygometopus) belongs to Phacops' according to Schmidt 1881
- 'Phacops (Pterygometopus) kegelensis is recombined as Achatella (Vironiaspis) kegelensis'
- 'Phacops (Pterygometopus) kuckersianus is recombined as Achatella (Vironiaspis) kuckersianus'
- 'Phacops (Pterygometopus) laevigatus is recombined as Keilapyge laevigatus'
- 'Phacops (Pterygometopus) nieszkowskii is recombined as Achatella (Achatella) nieszkowskii'
- 'Phacops (Pterygometopus) panderi is recombined as Estoniops panderi'
- 'Phacops (Pterygometopus) trigonocephala is recombined as Ingriops trigonocephala'
- 'Phacops (Pterygometopus) trigonocephala intermedia belongs to Phacops (Pterygometopus) trigonocephala' according to Schmidt 1881
- 'Phacops (Pterygometopus) trigonocephala intermedia is recombined as Ingriops intermedius'
- 'Phacops sandbyensis is recombined as Estoniops sandbyensis'
- 'Pterygometopinae belongs to Pterygometopidae'
- 'Pterygometopus belongs to Pterygometopinae'
- 'Pterygometopus bredensis belongs to Pterygometopus' according to Weber 1948
- 'Pterygometopus schmidti is recombined as Achatella schmidti'
- 'Upplandiops belongs to Pterygometopinae'
- 'Upplandiops calvus belongs to Upplandiops'