The (Thelodonti) - class
() - order
()

()

()

()

()

()

()

()

()

()

()

()

()
(Archipelepidiformes) - order

()

()

()

()
(Furcacaudiformes) - order

()

()

()

()
(Thelodontiformes) - order

(Coelolepidae)
- family

(Eestilepididae)
- family

(sHelenolepididae)
- family

(Loganelliidae)
- family

(Longodidae)
- family

(Palaeodontidae)
- family

(Phlebolepididae)
- family

(Shieliidae)
- family

(Talivaliidae)
- family

(Turiniidae)
- family