010030 - Nicely Preserved Knightia Fossil Fish Eocene Green River Fm, Wyoming (USA) Tooth The rarity of discovering a

The rarity of discovering a specimen such amazing as this one

It is very common to find fish vertebrae in the Cretaceous sites in the south of Morocco

North Africa and New Zealand

a species quite abundant in the phosphate quarries of the Ouled Abdoun Basin

Beautiful cranial dermal plate of an indeterminate crocodile from the Upper Cretaceous

010030 - Nicely Preserved Knightia Fossil Fish Eocene Green River Fm, Wyoming (USA) Tooth The rarity of discovering aMagnificent specimen with detailed preservation. You can see the whole bone structure as well as details of the jaw and its small teeth. From this type of fossilization, through taphonomy, many aspects of the original paleoenvironment can be learned. This type of preservation only occurs under certain very special circumstances, in the bottoms of lakes, with anoxic conditions, for example.