Evolution of the Actinopterygians & Fossil Forms


 

 

 Cladogram of Basal Actinopterygians

The synapomorphies (nodes, A through N) are formally listed on the page corresponding to the stem-most clade sharing it (e.g. node A is explained on the Cheirolepididae page, node F on that of the Ptycholepididae, etc.)

Systematic classification of the major actinopterygian subgroups:

ACTINOPTERYGII

Cheirolepididae

Polypteridae

ACTINOPTERI

Mimiidae

Stegotrachelidae

Ptycholepididae

Amblypteridae

Redfieldiidae

Amphicentridae

Dorypteridae

Saurichthyiformes

(CHONDROSTEI)

Chondrosteidae

Acipenseridae

Polyodontidae

Palaeonisciformes

Pholidopleuriformes

Perleidiformes

Peltopleuriformes

NEOPTERYGII - Link to the more derived Actinopterygians...