5 incomplete dorsal spines of dishes. Memacantus Hybodus. In a tatty handmade display box, box made 40-50 years ago. From Rhaetic bone bed. Actual weight 1kg with box. Postage included for UK mainland customers.
Age 200 million/Rhaetic bone bed
Size rock approx 20.5 x 12.5 x 4cm.
Location Blue Anchor, Somerset, UK.