05028 - Beautiful Pyritized 1.44 Inch Unidentified Lower Cretaceous Ammonites Notinodon The characteristic lines of suture

The characteristic lines of suture of this cephalopod of the Paleozoic can be perfectly observed

-Halisaurus aramborgi (Bardet et al

(2012) A skull fragment of the mosasaurid Prognathodon cf

described a new genus and species of pterosaur

The rarity of discovering a specimen such amazing as this one

05028 - Beautiful Pyritized 1.44 Inch Unidentified Lower Cretaceous Ammonites Notinodon The characteristic lines of sutureSpecimen of extreme quality. Unidentified species. His suture lines are wonderfully well detailed. It is naturally pyritized. It has undergone a taphonomic process of permineralization in Iron Sulfide (Pyrite). Permineralization is a process of fossilization in which mineral deposits form internal casts of organisms.