pets and animals pic

Reptiles Guide

Lepidosauromorpha

From Wikipedia the free encyclopedia, by MultiMedia

Back | Home | Up


Lepidosauromorphs
 
Fossil range: Late Permian - Recent
A Plumed Basilisk
 
A Plumed Basilisk
Scientific classification
Kingdom: Animalia
 
Phylum: Chordata
 
Class: Sauropsida
 
Subclass: Diapsida
 
Infraclass: Lepidosauromorpha
 
Orders
See text

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
    • LEPIDOSAUROMORPHA
      • Acerosodontosaurus (extinct)
      • Superorder Sauropterygia - Plesiosaurs (extinct)
      • Lepidosauriformes
        • Order Eolacertilia (extinct)
          • Icarosaurus
          • Kuehneosaurus
        • Superorder Lepidosauria
          • Order Sphenodontia - Tuatara
          • Order Squamata
            • Suborder Lacertilia - Lizards
            • Suborder Serpentes - Snakes
            • Suborder Amphisbaenia - Worm lizards

A new phylogenetic analysis indicates that indeed there are two major branches to the reptile family tree, the archosauromorphs and the lepidosauromorphs. Cephalerpeton is at the base of the Lepidosauromorpha. More derived clades include capitorhinids; an unnamed clade that includes caseids, Milleretta, Oedaleops, Eunotosaurus and Acleistorhinus; Belebey plus Bolosaurus; diadectomorphs; Procolophon; pareiasaurs including turtles; Lanthanosuchus; Nyctiphruretus; owenettids; Paliguana; Saurosternon; Coelurosauravus; kuehneosaurids; Homoeosaurus and the sphenodontids (including rhynchosaurs and trilophsaurs); and finally three clades of lepidosaurs. The three clades include two traditional ones with extant members, the Iguania and the Scleroglossa. The third and newest lepidosaur clade has Huehuecuetzpalli at its base followed by Jesairosaurus + the drepanosaurids and Macrocnemus + the Fenestrasauria, which includes tanystropheids and pterosaurs among others. Acerosodontosaurus and sauropterygians are archosauromorphs in the new analysis.


Home | Up | Sauropterygia | Squamata | Lepidosauromorpha

Reptiles Guide, made by MultiMedia | Free content and software

This guide is licensed under the GNU Free Documentation License. It uses material from the Wikipedia.

Recommend This Page To A Friend!


Copyright Pets Animals Lover Information World 2006, All Rights Reserved