Peripristis semicircularis 

    Out of stock

    Peripristis semicircularis an  Extinct Petalodont shark

    very rare, well preserved tooth. Beautifully articulated. An exceptional collector's piece from an old collection!  The best available!  

    Age: Pennsylvanian (300 mya) ; Stanton Fm. (Missourian)

    Location: Louisville, Cass Co., Nebraska

    Z148          SIZE: 3/4"

    This catalog includes a great selection of very rare Mississippian age (347 MM years ago) and Pennsylvanian age (300 MM years ago). The Paleozoic sharks are the first to evolve and the quantity of fossilized specimens is very small. The Paleozoic specimens are incredibly rare compared to the later period sharks, but are still affordable! Note - I added some incredible Nebraska and Iowa pieces from an old collection assembled during 1950-1980s with exceptional Peripristis & Petalodus teeth. These locations are no longer in existence.