''Phylactocephalus'' (meaning "bringing forth rays from the head") is a genus of prehistoric
fish
Fish are aquatic, craniate, gill-bearing animals that lack limbs with digits. Included in this definition are the living hagfish, lampreys, and cartilaginous and bony fish as well as various extinct related groups. Approximately 95% of li ...
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References
Prehistoric aulopiformes
{{Alepisauriformes-stub