1.32" Macrorhizodus Praecursor Lower Tooth (Kazakhstan)

Size: 1.32" from root to tip.

Weight: 3.3g

Species: macrorhizodus praecursor

Age: Eocene (56 to 33.9MYA)

Location Found: Mangyshlak, Kazakhstan

Macrorhizodus is an extinct genus of mackerel shark which lived from the early Eocene to early Oligocene epoch of the Paleogene period. It is often considered ancestral to Isurus and sometimes considered part of it. Macrorhizodus is also likely ancestral to Cosmopolitodus. It seems to be related to Isurolamna.It is an incredibly widespread shark, known from every continent except Australia. This includes a report from Antarctica.