Changes

==Taxonomy==

==Taxonomy==

Reptiles are ectothermic vertebrates with scales or plates, right and left aortic arches, a partially divided heart and a single occipital condyle.  

Reptiles are [[Ectothermy|ectothermic]] vertebrates with scales or plates, right and left aortic arches, a partially divided heart and a single occipital condyle.  

* Lizards are a very large and widespread group of the reptilian order Squamata. The nearly 7200 species of lizards are the most diverse and speciose living clade of reptiles; of course this total includes the worm lizards and snakes (which are actually reduced-limbed or limbless lizards). However, because snakes are a monophyletic group arising from within a group of lizards, the taxon Serpentes and its definition delimit a monophyletic group. Herein, the term lizard represents our shared perception and excludes Serpentes and Amphisbaenia.  

* Lizards are a very large and widespread group of the reptilian order Squamata. The nearly 7200 species of lizards are the most diverse and speciose living clade of reptiles; of course this total includes the worm lizards and snakes (which are actually reduced-limbed or limbless lizards). However, because snakes are a monophyletic group arising from within a group of lizards, the taxon Serpentes and its definition delimit a monophyletic group. Herein, the term lizard represents our shared perception and excludes Serpentes and Amphisbaenia.