A very nice slab of dinosaur bone from the Utah/Colorado Morrison Formationwhich dates to the late Jurassic sequence (155 million years ago - 148 million years ago) .95 ounces and approximately 2 1/2 inches wide x 1 inch in height and 7 mm in thicknessI beautiful solid chunky piece of bright reddish orange cells surrounded by lighter creamy colored structureFrom a rock hounds 60 year collection of material Please check our other auctions for more dinosaur bone and petrif...ied wood. Combined shipping available for multiple purchases to save you money. Please wait for an invoice. Shipping charges will be calculated and available options offered on the invoice.