Im not sure but I think that the game only has one species of ankylosauridae (which is of course the anky)
Adding another one like this one with the unique abilities that ate giving to him would actually be kind of nice
Always wanted the anky to be an dino that can take on a rex, which realistically it should be able to kill a rex but ingame it basically just a free meal, where as this edmontonia can prove to be a force to be reckoned with