Usually Keichousaurus specimen is in dark grey colour. However, in some rare stratum, calcite would penetrate into the stratum and mineralized on the specimen surface which made the skeleton white in colour, that create a beautiful contrast to the reddish color matrix. To show the white calcite on the Keichousaurusu skeleton requires preparation by professional fossil preparator, with air scribe and sandblasting, which is very time consuming and costly. This specimen is an all natural white colour Keichousurus skeleton in red matrix. This Keichousaurus measures around 29cm, its large size make it even more rare and valuable. Slab size:　37(length) x 23(depth) x 1cm (thickness) Keichousaurus is a genus of marine reptile in the pachypleurosaur family which went extinct at the close of the Triassic in the Triassic-Jurassic extinction event. Will communicate with the winner before shipout by courier service. Parcel will be packed carefully and safely to maximize the protection. Insurance at buyer’s additional cost; otherwise the parcel will NOT be insured. DUE TO THE HIGH IMPORT TARIFF IN USA, WILL NOT SHIP TO USA.