Wikipedia:Articles for deletion/Thagomizer
A notable and well-known piece of anatomy for a group of multiple species that, except for having a name derived from a joke, is not different in principle from other topics on pieces of anatomy common only to small numbers of species, like say our articles on Prostate evolution in monotreme mammals|monotreme prostates, tiger tails, or Pastern|parts of horse legs. In fact, the success of the joke from which the name was derived attests to the fact that this is a well-known and therefore notable topic: if it weren't, nobody would have gotten the joke. As for the name, first of all it's irrelevant as it's the underlying topic and not its name for which we need to determine notability, secondly, it seems to be the  now in the absence of any alternative, and thirdly  is not a valid deletion rationale
— User:David, 07:50, 26 January 2021 (UTC)
Stance: keep
Cited policy: WP:COMMONNAME||WP:IDONTLIKEIT (Wikipedia:Article titles)