Here is an interesting offer. Very nice preserved Lamniform fossil shark tooth 

- Cretalamna sarcoportheta Siversson et al., 2015

The fossil found at Rybushka formation, Cretaceous (Campanian) deposits of an outcrop near Malaya Serdoba village, Penza region, Russia.  Shipping worldwide is $15  and will be combined for the bulk order.

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