Opinions from P. J. Waddell et al. 1999
- 'Afrotheria belongs to Atlantogenata'
- 'Artiodactyla is a subjective synonym of Cetartiodactyla'
- 'Atlantogenata belongs to Placentalia'
- 'Carnivora belongs to Zooamata'
- 'Cetacea belongs to Whippomorpha'
- 'Cetartiodactyla belongs to Fereuungulata'
- 'Cetruminantia belongs to Cetartiodactyla'
- 'Chiroptera belongs to Scrotifera'
- 'Dermoptera belongs to Primatomorpha'
- 'Euarchonta belongs to Placentalia'
- 'Fereuungulata belongs to Scrotifera'
- 'Glires belongs to Placentalia'
- 'Hippopotamidae belongs to Whippomorpha'
- 'Hyracoidea belongs to Paenungulata'
- 'Lagomorpha belongs to Glires'
- 'Laurasiatheria belongs to Placentalia'
- 'Macroscelidea belongs to Afrotheria'
- 'Paenungulata belongs to Pseudoungulata'
- 'Perissodactyla belongs to Zooamata'
- 'Pholidota belongs to Zooamata'
- 'Primates belongs to Primatomorpha'
- 'Primatomorpha belongs to Euarchonta'
- 'Proboscidea was reranked as a order and belongs to Paenungulata'
- 'Pseudoungulata belongs to Afrotheria'
- 'Rodentia belongs to Glires'
- 'Ruminantia belongs to Cetruminantia'
- 'Scandentia belongs to Euarchonta'
- 'Scrotifera belongs to Laurasiatheria'
- 'Sirenia belongs to Paenungulata'
- 'Tubulidentata belongs to Pseudoungulata'
- 'Whippomorpha belongs to Cetruminantia'
- 'Zooamata belongs to Fereuungulata'