Cosmpopolitodus Hastalis - Tumblr Posts

Fossil Shark Teeth ID Project - Part 1

I am currently working on a shark teeth ID project. It is a personal project I am working on because I got gifted a multitude of fossil shark teeth of various species.

I am fairly sure that the teeth (seen in the two pictures below) belong to the family Lamnidae and are from the species Cosmopolitodus hastalis.

If these teeth are in fact the teeth of Cosmopolitodus hastalis they ought to date back to the Miocene and Pliocene (which are the two epochs of the Neogene). Although the species was still alive during the Pleistocene, fossils found of Cosmopolitodus hastalis in Cadzand (in the Netherlands) date back to the Miocene and Pliocene.

One of the shark teeth (the left picture below) gifted to me is so severely eroded that I cannot visually identify it, however it is still a gorgeous fossil.

Between the various shark teeth I also found what I suspect to be a part of a fossilised chela (claw/pincer of a crab) (seen in the right picture below). Considering the location of the find I think it might be from Carcinus maenas and could date back to the Pliocene.