1.51" (3.85 cm) Brachiosaurid? tooth from the Tiouraren Formation of the Agadez region of Niger. Between 167-161 Million years old. I've had quite a few Jobaria/Spinophrosaurus teeth and this one is different. While no brachiosaurid is described from the Tiouraren formation, this tooth has several qualities of their style of teeth. However, I cannot garauntee that it is.