This auction is for a PAIR of Keichousaurus, the large keichousaurus is in dorsal view, another a baby keichousuarus is in abdominal view, perfect for fossil collectors who would like to collect both views of anatomical details. The large Keichousaurus in dorsal view. It is painstakingly prepared by sandblasting which retained very fine bone details. Teeth in skull is clearly visible, while Its hand and foot digits detail are well retained. Slab size of dorsal view Keichousaurus: 315 x 210 x 16mm Slab size of abdominal Keichousaurus: 124 x 70 x 17mm Keichousaurus is an extinct genus of marine reptiles in the family Pachypleurosauridae. It lived during the Middle Triassic , 252 to 201 million years old. They are among the most common sauropterygian fossils recovered and are often found as nearly complete, articulated skeletons, making them popular among collectors.