What is Reptiliomorpha?
{{Automatic Taxobox | name = Reptiliomorpha | image = ChroniosuchusDB126.jpg | taxon = Reptiliomorpha | authority = | subdivision_ranks = Groups | subdivision = *[[Embolomeri]] *[[Chroniosuchia]] *[[Gephyrostegida]] *[[Diadectomorpha]] *[[Amniota]] [[crown group]] }} '''Reptiliomorpha''' is a [[clade]] of the [[amniotes]] and those [[tetrapods]] that share a more recent common ancestor with amniotes than with living amphibians ([[lissamphibia]]ns). Unfortunately, different experts have used the term in several different ways. It has even been used for fossils of early amphibians. It is best used for animals which lay [[cleidoic egg]]s, but are not [[synapsids]]. Otherwise precursors of reptiles ([[sauropsids]]) get lumped together with precursors of mammals (synapsids). Its only justification is that it may not always be possible to decide which group a fossil is from. But gradually, as with ''[[Seymouria]]'', it is possible to separate fossils into more specific grouups. {{-}} {{biology-stub}} [[Category:Amphibians]] [[Category:Reptiles]]