Cosmopolitodus planus from Sharktooth Hill.

Cosmopolitodus planus is only found in Pacific Ocean deposits and appears to be an offshoot of Cosmopolitodus hastalis with which it is found. Compared with hastalis, upper C. planus, teeth tend to be slightly narrower and possess a more hooked blade. Lower teeth are virtually indistinguishable from those of hastalis.

Mantell's Iguanodon restoration