Someone on twitter said this is a “List of Alien bodies allegedly in the possession of the United States government”

I was lurking on twitter in the morning and came across this post by a twitter user. It was a very popular post and a lot of people interacted with it. People in the comments were also saying that this list is real but i dont really believe that. Why would the alien bodies stop at 1989. Or maybe there is a bigger list that we haven’t seen