20532 - Top Huge 1.56 Inch Squalicorax pristodontus (Crow Shark) Tooth Trilobites (Full reference: N

(Full reference: N

Permineralization is a process of fossilization in which mineral deposits form internal casts of organisms

In these sites there are numerous different species of Mosasaurus described in the enormous assemblage of giant marine reptiles that reigned the seas during the Cretaceous

The details of the osseous structure of the root are astonishingly well defined

20532 - Top Huge 1.56 Inch Squalicorax pristodontus (Crow Shark) Tooth Trilobites (Full reference: NPrecious huge tooth of Squalicorax pristodontus (Crow Shark) from the phosphate deposits of the Ouled Abdoun Basin (Morocco). The Ouled Abdoun Basin (or Khouribga Basin), located in the central sector of Morocco, is an enormous sedimentarian basin represented mostly by a vast filling of phosphate sediments. Apart from having a relevant raw material to be extracted, it has a series of very important paleontological sites in which amazing assemblages