A Ceratodontoidei a csontos halak (Osteichthyes) főosztályának izmosúszójú halak (Sarcopterygii) osztályába, ezen belül a tüdőshalalakúak (Ceratodontiformes) rendjébe tartozó alrend.
Az alrendbe az alábbi 2 család tartozik:
- Vorobyeva, E.I. & Obruchev, D.V. 1964. Class Osteichthyes, bony fishes. Sublass Sarcopterygii. In D. V. Obruchev (ed.), Fundamentals of Paleontology. Vol. XI. Agnatha, Pisces. Izdatel'stvo "Nauka", Moscow. 420-509.
- Kirkland, J.I. 1987: Upper Jurassic and Cretaceous lungfish tooth plates from the Western Interior, the last dipnoan faunas of North America. Hunteria, 2(2): 1–16.
- Miles, R.S. 1977: Dipnoan (lungfish) skulls and the relationships of the group: a study based on new species from the Devonian of Australia. ISSN 0024-4082|Zoological journal of the Linnean Society, 61(1-3): 1–328. doi:10.1111/j.1096-3642.1977.tb01031.x
- Kemp, A. 1992: New cranial remains of neoceratodonts (Osteichthyes: Dipnoi) from the Late Oligocene to Middle Miocene of northern Australia, with comments on generic characters for Cenozoic dipnoans. Journal of vertebrate paleontology 12(3): 284–293. DOI: 10.1080/02724634.1992.10011460 Reference page.
- Kemp, A. 1997: A revision of Australian Mesozoic and Cenozoic lungfish of the family Neoceratodontidae (Osteichthyes: Dipnoi), with a description of four new species. Journal of paleontology, 71(4): 713–733. JSTOR
- Kemp, A. 1999: Sensory lines and rostral skull bones in lungfish of the family Neoceratodontidae (Osteichthyes: Dipnoi). Alcheringa, 23(4): 289–307. DOI: 10.1080/03115519908527812
- Apesteguía, S.; Agnolin, F.L.; Claeson, K. 2007: Review of Cretaceous dipnoans from Argentina (Sarcopterygii: Dipnoi) with descriptions of new species. Revista del Museo Argentino de Ciencias Naturales (n.s.), 9(1): 27–40. full article (PDF)