In palaeontology, a jawbone is the closest thing to an identity card. Teeth tell palaeontologists almost everything about an animal: what it ate, how it lived, how old it was when it died. This is a genuine fossilised bison mandible — the lower jaw of an ancient bison — and its teeth are still there, in their original sockets, worn by years of chewing that ended millions of years ago. Bison were among the great survivors of the Ice Age — their herds once roamed the northern grasslands alongside woolly mammoths — and fossil jaws like this one are the quiet records of that vanished world. Look at it: The long, curved jawbone, 38 × 20 cm — an impressive, display-sized specimen. A complete row of teeth, preserved in place, with visible wear facets across the chewing surfaces. The distinct enamel pattern — dark brown and light ochre banding across each tooth, natural mineral staining from its long burial. The full ascending ramus — the rear vertical part of the jaw is complete, with its bony processes and natural openings clearly preserved. The warm fossil colouration — deep tan and umber, with the textured surface of bone that has turned to stone. The specimen is mounted on a transparent display stand, ready for a shelf, a desk, or a museum-style cabinet. It is a substantial piece — 0.77 kg of solid fossil — with real presence in a room. Honest note: the jaw is identified as bison by its overall form; we show both sides and close-ups of the teeth, so you can judge the condition exactly as it is. Whether you collect vertebrate fossils, teach natural history, or simply love the deep time written into bone — this bison mandible is a genuine, untouched fossil, ready to be displayed. Specifications: Type: Fossilised bison mandible (lower jaw) Reference: 015 Size: 38 × 20 cm Weight: 0.77 kg Features: Complete tooth row with wear facets, full ascending ramus, natural mineral staining Species: Bison (large mammal) Stand: Transparent display stand included Condition: Natural fossil, weathered and mineralised as shown in photos Age: Fossil (geological age not specified) Origin: Natural specimen, not artificially treated It is an identity card from the age of the bison, written in teeth and bone, standing on your shelf. You get to display it.