linguistic:translation
Taxonomy

The relationship of lungfishes to the rest of the bony fish is well understood:

Recent molecular genetic analyses strongly support a sister relationship of lungfishes and tetrapods (Rhipidistia), with coelacanths branching slightly earlier.

The relationships among lungfishes are significantly more difficult to resolve. While Devonian lungfish had enough bone in the skull to determine relationships, post-Devonian lungfish are represented entirely by skull roofs and teeth, as the rest of the skull is cartilaginous. Additionally, many of the taxa already identified may not be monophyletic.

Phylogeny after Kemp, Cavin & Guinot, 2017

Cladogram after Brownstein et al. 2023