Hello all.
I am a noob. Please go easy on me.
My bottom bracket on 1999? Specialized Rockhopper was crunchy. So after research, I found out it was a square taper type. I got a Park Tool to remove the crank and expected to see splines (that’s what all videos that I saw) showed.

However, there were no splines to be turned. The drive side had what looked like a large silver washer with slight flat edge on opposing sides. The non-drive side had some protrusions but it did not look as if it was meant for any tool to grab on to.

What is this madness? I took beautiful photos to post but I didn’t have enough posts to attach photos. Any input from those who are knowledgeable would be greatly appreciated.