Sauropsida Totally Explained

Everything about Sauropsida totally explained

Sauropsida ("lizard-face") is a group of amniotes that includes reptiles, dinosaurs, and birds. Among amniotes, sauropsida is distinguished from theropsida ("beast-face"), also called synapsids.==Taxonomy== Classification to order level, after Benton, 2004.

Series Amniota

Class Synapsida

Order Pelycosauria *
Order Therapsida
- Class Mammalia

Class Sauropsida

Subclass Anapsida
- Order Testudines (turtles)

Subclass Diapsida

Order Araeoscelidia
Order Younginiformes
Infraclass Ichthyosauria

Infraclass Lepidosauromorpha

Superorder Sauropterygia
- Order Placodontia
- Order Nothosauroidea
- Order Plesiosauria
Superorder Lepidosauria
- Order Sphenodontia (tuatara)
- Order Squamata (lizards & snakes)
Infraclass Archosauromorpha
- Order Prolacertiformes
- Division Archosauria
  - Subdivision Crurotarsi
    - Superorder Crocodylomorpha
      - Order Crocodylia
    - Subdivision Avemetatarsalia
      - Infradivision Ornithodira
        Order Pterosauria
        Superorder Dinosauria
        Order Saurischia
        Class Aves
        Order Ornithischia

Further Information

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