Temporal range: Middle Triassic–Late Jurassic
Pholidophorus was a herring-like fish about 40 centimetres (16 in) long, although it was not closely related to modern herring. Like them, however, it had a single dorsal fin, a symmetrical tail, and an anal fin placed towards the rear of the body. It had large eyes and was probably a fast-swimming predator, hunting planktonic crustaceans and smaller fish.
A contrary view
According to T.S. Kemp, "a single species of fish from the Jurassic, Pholidophorus bechii, is thought to be the sister-group" of all fossil and living teleosts.
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