Board Thread:Wiki Discussion/@comment-25175729-20181207030647/@comment-1073312-20181207183322

We removed Maxis creatures from the Taxonomy project because it is irrelevant as far as the main namespace goes. It just adds trivial content that has no objective basis in Spore. Maybe it is a bit pedantic, but we have a re-occurring issue that people add speculation and unnecessary trivia to main namespace articles, which should only feature verifiable information about Spore.

There is nothing stopping people from making fanficton pages about Maxis creatures, placing them in a creature namespace, and giving them a taxonomy classification. We already have some fanfic articles that list Maxis creatures, although I can't remember if there's any individual pages off the top of my head.