Psiloceras planoribis is Britains oldest ammonite. These are collected from loose material from the beach. Free standing on a cut base. Nice example. The blue iridescent colour is natural, but its very thin and must not be rubbed or brushed. Postage included for UK customers.
Age: 200 million years.
Size: Approx. rock 12.5cm tall, ammonite, 5.5cm.
Location: Lower Lias, Watchet, Somerset, UK.