The Early Birder

Amphibian & Reptile Groups

* = extinct

Amphibian Groups

Subclass Labyrinthodontia (diverse Paleozoic and early Mesozoic group)*

Subclass Lepospondyli (small Paleozoic group)*

Subclass Lissamphibia (frogs, salamanders, etc

Order Anura
(frogs and toads)

Order Caudata or Urodela

Order Gymnophiona or Apoda

Reptile Groups

Subclass Anapsida (= Parareptilia)

Order Procolophonomorpha *

Order Testudines (turtles)

Subclass Diapsida

Order Araeoscelidia *

Order Avicephala *

Order Younginiformes *

Superorder Ichthyopterygia ("fish lizards") *

Order Grippidia *

Order Ichthyosauria *

Infraclass Lepidosauromorpha

Superorder Lepidosauria

Order Sphenodontida (tuatara)

Order Squamata (lizards and snakes)

Superorder Sauropterygia *

Order Nothosauroidea *

Order Placodontia *

Order Plesiosauria *

Infraclass Archosauromorpha

Order Choristodera *

Order Prolacertiformes *

Division Archosauria

Order Aetosauria *

Order Phytosauria *

Order Pterosauria (flying reptiles) *

Order Rauisuchia *

Superorder Crocodylomorpha

Order Crocodilia (crocodiles and relatives)

Superorder Dinosauria

Order Ornithischia *

Order Saurischia