Sip back and discover Barnhill Quarry near Chipping Sodbury in Bristol, a fossil rich SSSI revealing 300 million years of geodiversity. Explore Carboniferous limestone, Triassic Rhaetic clays, ripple marked pavements, karstic grikes, coral beds and bone beds with shark and fish fossils, revealing shallow tropical seas, ancient tidal flats, and the transition to Triassic environments before mass extinction and research by Professor Sidney Reynolds.