Thread:UltimateTitan6/@comment-995426-20160727080041

I'm maintaining the species category trees , according to s. Traditional taxonomy taught that fish, amphibians, reptiles, birds and mammals are all vertebrates, and this is still true. People were also taught that reptiles evolved from amphibians, but that reptiles were not considered amphibians proper. In a strict cladistic sense, this is an illusion, and all reptiles are indeed amphibians&mdash;just one particular cladistic branch of them. The popular association that reptiles are not amphibians is an example of, where branches of a clade are excluded from the parent clade's definition in a word's definition. But because of knowledge of evolution and especially, we know better than ever that paraphyly is an illusion.

So, even though individual reptile article entries should not go directly in Category:Amphibians, the Category:Reptiles itself must go in Category:Amphibians to the category tree's cladistic continuity. 