Hexanchus (Notidanus) primigenius (Agassiz, 1835)
Beautifully preserved complete tooth from a seven- gilled shark. On matrix. From the famous locality of Shark Tooth Hill.
Miocene, Helvetian.
Shark Tooth Hill, Bakersfield, Kern County, California, USA.
Tooth : 1.5 x 1.5 cm.