<==o DIPNOMORPHA (keuhkokalamaiset; lungfish-like sarcopterygians)
|--o †POROLEPIFORMES
| |-- †Porolepidae
| `--o †HOLOPTYCHIOIDEA
| `-- †Holoptychidae
`--o DIPNOIFORMES (keuhkokalat)
|-- †Powichthyidae
`--+-- †Youngolepidae?
`--o DIPNOI [Dipneusti]
|-- †Diabolepidae?
`--+-- †Uranolophidae [URANOLOPHINA:]
`--o DIPNORHYNCHINA
|?- †Holodontidae
|-- †Dipnorhynchidae
`--o SPEONESYDRIONINA? [tooth-plated dipnoans]
|-- †Chirodipteridae
|-- †Stomiahykidae
`--+== †Dipteridae
|-- †Rhynchodipteridae
`--+-- †Fleurantiidae
`--+-- †Phaneropleuridae
|-- †Ctenodontidae
|-- †Sagenodontidae
`--+-- †Conchopomidae
`--+-- †Uronemidae
`--o CERATODIFORMES [Lepidosireniformes, Ceratodontidae sensu Carroll, 1988] (nykykeuhkokalat (australiankeuhkokalat + siimaeväkeuhkokalat))
|--+-- †Asiatoceratodontidae
| `--+-- †Ptychoceratodontidae
| `--+-- †Ceratodontidae
| `-- Neoceratodontidae [Ceratodidae] (australiankeuhkokalat)
`--+-- †Gnathorhizidae
`-- Lepidosirenidae [Protopteridae] (siimaeväkeuhkokalat)
Reference(s):
Ahlberg, P. E. & Johanson, Z. 1998: Osteolepiforms and the ancestry of tetrapods.
–Nature: Vol. 395, 22 October, pp. 792-794
Carroll, R. L., 1988: Vertebrate paleontology and evolution.
–W. H. Freeman and company, New York, 1988, 698
Carroll, R. L., 1988: Appendix. 594-648
in Carroll, R. L., 1988: Vertebrate paleontology and evolution.
–W. H. Freeman and company, New York, 1988, 698
Cloutier, R. & Ahlberg, P. E., 1996:
Morphology, characters, and the interrelationships of basal sarcopterygians
in Stiassny, M. L. J. et al., 1996: Interrelationships of Fishes.
--Academic Press, San Diego, 1996, xiv-496
Kemp, A., 1998: Skull structure in post-Paleozoic lungfish.
–Journal of Vertebrate Paleontology: Vol. 18, #1, pp. 43-63
Long, J. A., 1995: The Rise of Fishes: 500 million years of evolution.
–Johns Hopkins University Press, Baltimore & London, pp. 1-223
