ID of Cycad

I have several cycads that I "inherited" from the previous owner of my property. I need to pin down what species they are. This one is some type of Dioon but not sure if it is spinulosum or another species.

Definitely looks like spinulosum to me. This is my spinulosum that was unfortunately killed by a cold snap this winter.

Thanks, I am not good at telling some of the Dioon species apart and this was left by an avid plant collector so I was trying to make sure.

I wish I'd inherit things like that. When I moved into my current house the previous owner left behind an old mechanical push mower that barely cut and a nearly entirely dead landscape. With that much trunk I would guess that is worth some pretty big bucks.