Opinions from J. W. Kitching 1977
- 'Aneugomphius is a subjective synonym of Whaitsia'
- 'Aneugomphius ictidoceps is a subjective synonym of Whaitsia platyceps'
- 'Arnognathus is an invalid subgroup of Therocephalia'
- 'Arnognathus parvidens is an invalid subgroup of Therocephalia'
- 'Aulacocephalodon cadlei is a subjective synonym of Aulacocephalodon bainii'
- 'Aulacocephalodon haughtoni is a subjective synonym of Aulacephalodon bainii'
- 'Aulacocephalodon peavoti is a subjective synonym of Aulacephalodon bainii'
- 'Blattoidealestes belongs to Ictidosuchidae' according to Boonstra 1954
- 'Blattoidealestes gracilis belongs to Blattoidealestes' according to Boonstra 1954
- 'Cerdops is a subjective synonym of Moschorhinus'
- 'Cerdops burgheri is a nomen dubium'
- 'Chelyoposaurus is a nomen dubium'
- 'Chelyoposaurus williamsi is a nomen dubium'
- 'Dicynodon daptocephaloides is a subjective synonym of Daptocephalus leoniceps'
- 'Dicynodon dutoiti is a subjective synonym of Daptocephalus leoniceps'
- 'Dicynodon grandis is a subjective synonym of Oudenodon bainii'
- 'Oudenodon planus is a subjective synonym of Oudenodon bainii'
- 'Oudenodon platyceps is a subjective synonym of Oudenodon bainii'
- 'Oudenodon platyfrons is a subjective synonym of Oudenodon bainii'
- 'Dicynodon schwarzi is a subjective synonym of Oudenodon bainii'
- 'Dicynodon vanderbyli is a subjective synonym of Oudenodon bainii'
- 'Dicynodon wellwoodensis is a subjective synonym of Oudenodon bainii'
- 'Euchambersia mirabilis belongs to Euchambersia'
- 'Hipposaurus kitchingi is a nomen dubium'
- 'Icticephalus belongs to Scaloposauridae' according to Broom 1915
- 'Icticephalus polycynodon belongs to Icticephalus' according to Broom 1915
- 'Kannemeyeria wilsoni is an objective synonym of Kannemeyeria simocephala'
- 'Karoomys is a subjective synonym of Cynognathus'
- 'Karoomys browni is a subjective synonym of Cynognathus crateronotus'
- 'Kitchingia planifrons is a subjective synonym of Rhachiocephalus magnus'
- 'Lycosuchus mackayi is a nomen dubium'
- 'Lystrosaurus amphibius is a subjective synonym of Lystrosaurus maccaigi'
- 'Lystrosaurus bothai is a subjective synonym of Lystrosaurus curvatus'
- 'Lystrosaurus maccaigi belongs to Lystrosaurus' according to Seeley 1898
- 'Lystrosaurus putterilli is a subjective synonym of Lystrosaurus murrayi'
- 'Lystrosaurus rubidgei is a subjective synonym of Lystrosaurus murrayi'
- 'Megacyclops whaitsi is a subjective synonym of Rhachiocephalus magnus'
- 'Moschorhinus esterhuyseni is a subjective synonym of Moschorhinus kitchingi'
- 'Moschorhinus minor is a subjective synonym of Moschorhinus kitchingi'
- 'Moschorhinus natalensis is a subjective synonym of Moschorhinus kitchingi'
- 'Moschorhynchus is a subjective synonym of Whaitsia'
- 'Moschorhynchus brachyrhinus is a subjective synonym of Whaitsia platyceps'
- 'Moschorhynchus gracilis is a subjective synonym of Whaitsia platyceps'
- 'Moschorhynchus latirostris is a subjective synonym of Whaitsia platyceps'
- 'Notaelurops is a subjective synonym of Whaitsia'
- 'Notaelurops paucidens is a subjective synonym of Whaitsia platyceps'
- 'Notosollasia is a subjective synonym of Whaitsia'
- 'Notosollasia boonstrai is a subjective synonym of Whaitsia platyceps'
- 'Notosollasia laticeps is a subjective synonym of Whaitsia platyceps'
- 'Notosollasia longiceps is a subjective synonym of Whaitsia platyceps'
- 'Octocynodon elegans is recombined as Polycynodon elegans'
- 'Oudenodon magnus is recombined as Rhachiocephalus magnus'
- 'Dicynodon prognathus is a subjective synonym of Oudenodon bainii'
- 'Pelanomodon wesselsi is a subjective synonym of Rhachiocephalus magnus'
- 'Platycyclops latirhinus is a subjective synonym of Platycyclops haughtoni'
- 'Platycyclops pricei is a subjective synonym of Platycyclops haughtoni'
- 'Platycyclops rubidgei is a subjective synonym of Platycyclops haughtoni'
- 'Promoschorhynchus is a subjective synonym of Moschorhinus'
- 'Promoschorhynchus platyrhinus is a subjective synonym of Moschorhinus kitchingi'
- 'Ptychognathus boopis belongs to Ptychognathus' according to Owen 1876
- 'Ptychognathus depressus belongs to Ptychognathus' according to Owen 1876
- 'Moschorhinus warreni is a subjective synonym of Moschorhinus kitchingi'
- 'Theriognathus microps is a subjective synonym of Whaitsia platyceps'
- 'Thrinaxodon putterilli is a subjective synonym of Thrinaxodon liorhinus'
- 'Tribolodon belongs to Galesauridae'
- 'Whaitsia platyceps belongs to Whaitsia' according to Haughton 1918
- 'Whaitsia pricei belongs to Whaitsia' according to Broom and Robinson 1948
- 'Whaitsia pricei is a subjective synonym of Whaitsia platyceps'