I would call them "classic" endings as opposed to "true" endings. They are true endings to the original stories, but the true ending of Disney movies are IN those movies.
Ocean Siren (Mermaid), from EB Hudspeth's The Resurrectionist, a two-part volume that includes The Codex Extinct Animalia, "a Gray’s Anatomy for mythological beasts" SOMEONE BUY ME THIS BOOK!
Is it a real mermaid skeleton in the photo? But it sure does look like a real mermaid skeleton. Maybe its real or maybe its not. I don’t think anyone really knows for sure. But to me it really does look like a real mermaid.