Opinions from D. Dineley and S. Metcalf 1999
- 'Acanthodiformes belongs to Acanthodii'
- 'Acanthodii belongs to Gnathostomata'
- 'Acanthothoraci belongs to Placodermi'
- 'Actinistia was reranked as a infraclass and belongs to Sarcopterygii'
- 'Agnatha belongs to Vertebrata'
- 'Anaspida was reranked as a subclass and belongs to Agnatha'
- 'Antiarchi belongs to Placodermi'
- 'Arthrodira belongs to Placodermi'
- 'Cephalochordata was reranked as a subphylum and belongs to Chordata'
- 'Chondrichthyes belongs to Gnathostomata'
- 'Climatiiformes belongs to Acanthodii'
- 'Conodonta was reranked as a subclass and belongs to Agnatha'
- 'Dipnoi was reranked as a order and belongs to Dipnoiformes'
- 'Dipnoiformes belongs to Sarcopterygii'
- 'Gnathostomata belongs to Vertebrata'
- 'Heterostraci was reranked as a order and belongs to Pteraspidomorphi'
- 'Ischnacanthiformes belongs to Acanthodii'
- 'Myxinoidea belongs to Agnatha'
- 'Osteichthyes belongs to Gnathostomata'
- 'Osteolepiformes belongs to Rhipidistia'
- 'Osteostraci was reranked as a order and belongs to Agnatha'
- 'Panderichthyida belongs to Rhipidistia'
- 'Petalichthyi is corrected as Petalichthyida and belongs to Placodermi'
- 'Phyllolepida belongs to Placodermi'
- 'Placodermi belongs to Gnathostomata'
- 'Porolepiformes belongs to Rhipidistia'
- 'Pseudopetalichthida is corrected as Pseudopetalichthyida and belongs to Placodermi'
- 'Pteraspidomorphi was reranked as a subclass and belongs to Agnatha'
- 'Ptyctodontida belongs to Placodermi'
- 'Rhipidistia was reranked as a infraclass and belongs to Sarcopterygii'
- 'Rhizodontiformes belongs to Rhipidistia'
- 'Sarcopterygii belongs to Osteichthyes'
- 'Stensioellida belongs to Placodermi'
- 'Thelodonti was reranked as a order and belongs to Pteraspidomorphi'
- 'Tunicata belongs to Chordata'
- 'Vertebrata belongs to Chordata'