05025 - Beautiful Pyritized 1.20 Inch Phylloceras Lower Cretaceous Ammonites Trilobites Under binocular loupes you can

Under binocular loupes you can even see the small details

Classifier: J

Carcharodontosaurus is a genus of carnivorous carcharodontosaurid dinosaurs that existed between 100 and 94 million years ago

Magnificent tooth of the ornithopod dinosaur Thescelosaurus

05025 - Beautiful Pyritized 1.20 Inch Phylloceras Lower Cretaceous Ammonites Trilobites Under binocular loupes you canSpecimen of extreme quality. 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.