The (Traquairaspidiformes) - order -extinct-
(Traquairaspididae) - family
(Traquairaspis)

(Traquairaspis campbelli)

(Traquairaspis symmondsi)
(Phialaspis)

(Phialaspis )

()

()

()
(Pseudotraquairaspis)

(Pseudotraquairaspis )

()

()

()
(Toombsaspis)

(Toombsaspis )

()

()

()
(Weigeltaspis)

(Weigeltaspis )

()

()

()