Opinions from G. G. Simpson 1972

  • 'Apterodytes is replaced by Palaeoapterodytes'
  • 'Palaeoapterodytes ictus is a nomen dubium'
  • 'Argyrodyptes belongs to Procellariidae'
  • 'Argyrodyptes microtarsus belongs to Argyrodyptes'
  • 'Arthrodytes belongs to Spheniscidae'
  • 'Chronozoon australae belongs to Chronozoon' according to De Vis 1883
  • 'Chubutodyptes belongs to Spheniscidae'
  • 'Chubutodyptes biloculata belongs to Chubutodyptes'
  • 'Cladornis belongs to Cladornithes'
  • 'Cladornis pachypus belongs to Cladornis'
  • 'Cladornithes belongs to Pelicaniformes'
  • 'Cruschedula belongs to Accipitridae'
  • 'Cruschedula revola belongs to Cruschedula'
  • 'Isotremornis is a subjective synonym of Paraptenodytes'
  • 'Paraptenodytes nordenskjoldi is a subjective synonym of Paraptenodytes antarcticus'
  • 'Metancylornis is a subjective synonym of Paraptenodytes'
  • 'Neculus is a nomen dubium'
  • 'Neculus rothi is a nomen dubium'
  • 'Palaeoapterodytes is a nomen dubium'
  • 'Palaeospheniscus belongs to Spheniscidae'
  • 'Palaeospheniscus affinis is a subjective synonym of Palaeospheniscus patagonicus'
  • 'Palaeospheniscus bergi belongs to Palaeospheniscus'
  • 'Palaeospheniscus gracilis belongs to Palaeospheniscus'
  • 'Palaeospheniscus intermedius is a subjective synonym of Palaeospheniscus patagonicus'
  • 'Palaeospheniscus interruptus is a subjective synonym of Palaeospheniscus patagonicus'
  • 'Palaeospheniscus medianus is a subjective synonym of Palaeospheniscus gracilis'
  • 'Palaeospheniscus menzbieri is a subjective synonym of Palaeospheniscus patagonicus'
  • 'Palaeospheniscus nereius is a subjective synonym of Palaeospheniscus gracilis'
  • 'Palaeospheniscus patagonicus belongs to Palaeospheniscus'
  • 'Palaeospheniscus planus is a subjective synonym of Palaeospheniscus bergi'
  • 'Palaeospheniscus robustus is recombined as Paraptenodytes robustus'
  • 'Palaeospheniscus rothi is a subjective synonym of Palaeospheniscus bergi'
  • 'Paraptenodytes belongs to Spheniscidae'
  • 'Arthrodytes andrewsi is a subjective synonym of Arthrodytes grandis'
  • 'Paraptenodytes brodkorbi belongs to Paraptenodytes'
  • 'Paraptenodytes curtus is a subjective synonym of Paraptenodytes robustus'
  • 'Paraptenodytes grandis is recombined as Arthrodytes grandis'
  • 'Paraspheniscus is a subjective synonym of Palaeospheniscus'
  • 'Pelecaniformes [misspelled as Pelicaniformes] belongs to Aves'
  • 'Perispheniscus is a subjective synonym of Palaeospheniscus'
  • 'Perispheniscus wimani is recombined as Palaeospheniscus wimani'
  • 'Pseudospheniscus is a subjective synonym of Palaeospheniscus'
  • 'Palaeospheniscus concavus is a subjective synonym of Palaeospheniscus bergi'
  • 'Pseudospheniscus convexus belongs to Pseudospheniscus' according to Ameghino 1905
  • 'Pseudospheniscus convexus is a subjective synonym of Palaeospheniscus bergi'
  • 'Palaeospheniscus interplanus is a subjective synonym of Palaeospheniscus bergi'
  • 'Treleudytes is a subjective synonym of Paraptenodytes'
  • 'Paraptenodytes crassus is a subjective synonym of Paraptenodytes robustus'