Piece of sea floor I hunted and found in Mayes County Oklahoma. It is 5 inches thick 36 inches across at the widest point. Completely engulfed in crinoids pieces. Very heavy! My son and I rolled it up and out of a creek bed. Barely lifted it high enough to sit on the tail gate of my truck. Listing it as pick up only in Del City, Oklahoma. I can ship it if someone guides me how to package it and is willing to pay for it. I do have many other specimens much smaller crinoids and coral all found in the same location. Pictures are in this auction but not part of this auction. Feel free to.call or text 918 two six nine 8084.