SUBCLASS: Tetrapodomorphs

Tetrapodomorpha are the branch of rhipidistia which went on to become the amphibians, reptiles, birds and mammals we know today.

Tetrapodomorphs fins developed the first type of humerus bone which allowed in the fin to have more versatility for aid to movement.

Tetrapodomorphs essentially are the origins of what is regarded as the superclass of tetrapoda.

Tetrapoda are vertebrates with four limbs, therefore amphibians, reptiles, birds and mammals are categorised in the tetrapodomorpha subclass.

All other known animals within the tetrapodomorpha are extinct.

An extinct superorder is osteolepiformes which are believed to be ancestral to tetrapods.

Another extinct order is rhizodontida.

Another extinct genus is kenichthys.

Many genera among these extinct orders are little understood and have only been categorised by a number of fossil discoveries.

Humans are tetrapods.

OSTEOLEPIDIDA

Prehistoric lobe finned tetrapodomorphs.

Four limbed vertebrates

RHIZODONTIDA

Extinct lobe finned fish with advanced dental structures, tail mechanism and enlarged pectoral fins.

KENICHTHYS

Extinct lobe finned fish with advanced nasal formation.

RHIPIDISTIA