#macrorhizodus
Macrorhizodus
Extinct genus of mackerel shark
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 known from isolated teeth and vertebral centra as well as at least two associated dentitions. It is an incredibly widespread shark, known from every continent except Australia. This includes a report from Antarctica.
Sat 29th
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