05364 - Nicely Preserved 1.42 Inch Serrated Palaeocarcharodon orientalis (Pygmy white Shark) Tooth Pyritized ammonites The Ancyloceratina were a diverse

The Ancyloceratina were a diverse suborder of ammonite most closely related to the ammonites of order Lytoceratina

Some of its alveoli are preserved

HALISAURINAE BARDET & PEREDA SUBERBIOLA

which is strongly abrasive

although their absolute chemical composition is dependent on the physical and chemical properties of the usually granular-crystalline material providing an electrically and thermally conductive dissipation network for lightning-facilitated energy transfer

05364 - Nicely Preserved 1.42 Inch Serrated Palaeocarcharodon orientalis (Pygmy white Shark) Tooth Pyritized ammonites The Ancyloceratina were a diverseThis 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