Platycephalichthys is a genus of tristichopterid lobe-finned fish which lived during the Upper Devonian, Frasnian stage.
Below is a cladogram from Swartz, 2012:[1]
Kenichthys
Rhizodontidae
Canowindridae
Megalichthyiformes
Tristichopteridae
Tinirau
Platycephalichthys
Panderichthys
Tiktaalik
Elpistostege
Tetrapoda
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