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) 1.11 ounces and approximately 2 1/4 inches wide x 1 7/8 inches in height at the point and 5.5 mm in thicknessRed, orange and yellow cells all in one piece. Very bright with good structure. Simply lovelyFrom a rock hounds 60 year collection of material Please check our other auctions for more dinos...aur bone and petrified 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.