Lepidosauromorphs Fossil range: Late Permian - Recent
A Plumed Basilisk
Scientific classification
Kingdom: Animalia Phylum: Chordata Class: Sauropsida Subclass: Diapsida Infraclass: Lepidosauromorpha Benton, 1983
Orders
Thalattosauriformes (extinct) Placodontia (extinct) Nothosauroidea (extinct) Plesiosauria (extinct) Eolacertilia (extinct) Sphenodontia Squamata

Lepidosauromorpha is a group of reptiles comprising all diapsids closer to lizards than to archosaurs (including crocodiles and birds). The only living sub-group is the Lepidosauria: extant lizards, snakes, and tuatara.

Classification

• Subclass Diapsida
  • Infraclass Lepidosauromorpha
    • Acerosodontosaurus (extinct)
    • Superorder Sauropterygia - Plesiosaurs (extinct)
    • Lepidosauriformes
      • Order Eolacertilia (extinct)
        • Icarosaurus
        • Kuehneosaurus
      • Superorder Lepidosauria
        • Order Sphenodontia - Tuatara
        • Order Squamata
          • Suborder Lacertilia* - Lizards
            • Family Mosasauridae
          • Suborder Serpentes - Snakes
          • Suborder Amphisbaenia - Worm lizards

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