Here is a limestone rock that we found one night in a loose shale slab and opened up on the beach with our geology hammer 🏝🌊 The surrounding shale is softer than the limestone and is easily removed using a large hammer and chisel. Inside was a beautiful Dactylioceras tenuicostatum ammonite from the Jurassic 😳 This ammonite is around 180 Million Years Old 💀 If you would like an ammonite rock to crack open, please message us directly on yorkshire fossils or visit our website yorkshirefossils.N