Wikipedia:Articles for deletion/List of mammal species
This type of excessive list directly violates  policy and gets into excessive cross-categorization. We already have lists like List of mammal genera that serve the same function without these issues as well as the taxobox navigation, etc. Nothing in the content is useful for a merge, and I don't see the term really being useful for a redirect since the list of mammal genera will pop up in the search bar anyways. Even with all that, the current state of the article is not reasonably fixable as others have mentioned
— User:Kingofaces43, 14:32, 26 September 2018 (UTC)
Stance: delete
Cited policy: WP:NOTDIR (Wikipedia:What Wikipedia is not)