Editing Anapsid (section)

{{Short description|Paraphyletic grouping of reptiles}}
{{For|the extinct fish|Anaspid}}
{{Automatic taxobox
| name = Anapsids
| fossil_range = [[Late Carboniferous]] to [[Late Triassic]] <br>{{fossil range|312|201.3|latest=0}}

| image = Skull anapsida 1.png
| image_caption = Anapsid skull
| taxon = Anapsida
| authority = [[Samuel Wendell Williston|Williston]], 1917
| subdivision_ranks = Subgroups
| subdivision = * {{Extinct}}[[Captorhinidae]]
* {{Extinct}}[[Protorothyrididae]]
* {{Extinct}}[[Parareptilia]]
** {{Extinct}}[[Mesosauria]]
** {{Extinct}}[[Millerosauria]]
** {{Extinct}}[[Procolophonomorpha]]
* [[Testudines]] (Turtles, [[tortoise]]s & terrapins)
}}
An '''anapsid''' is an [[amniote]] whose skull lacks one or more skull [[temporal fenestra|openings]] (fenestra, or fossae) near the [[Temple (anatomy)|temple]]s.<ref>Pough, F. H. et al. (2002) ''Vertebrate Life'', 6th ed. Upper Saddle River, New Jersey: Prentice Hall. {{ISBN|0-13-041248-1}}</ref> Traditionally, the Anapsida are considered the most primitive subclass of amniotes, the ancestral stock from which [[Synapsida]] and [[Diapsid]]a evolved, making anapsids [[paraphyly|paraphyletic]]. It is, however, doubtful that all anapsids lack temporal fenestra as a primitive trait, and that all the groups traditionally seen as anapsids truly lacked fenestra.