20539 - Strongly Serrated 1.43 Inch Palaeocarcharodon orientalis (Pygmy white Shark) Tooth Parvilichas The shelly fossil record shows

The shelly fossil record shows a well-recognized pattern of macroevolutionary stasis between the Cambrian Explosion and the Great Ordovician Biodiversification Event

Skull almost complete of this rare Cretaceous fish

United States ( Alaska

prepared in an exceptional way

They are found fossilized in silica (silicified)

20539 - Strongly Serrated 1.43 Inch Palaeocarcharodon orientalis (Pygmy white Shark) Tooth Parvilichas The shelly fossil record showsThis is one of the sharks with sharpest and most serrated edges of all the assemblage in the Paleogene phosphate quarries of the Oulad Abdoun Basin (Morocco). The lateral serrations are really spectacular. It is still sharp, with an intact tip. Its root is also completely original, not like many which are sold online. It is difficult to find better specimens than this one. The serrate lateral cusplets are also well preserved. The genus