07388 - Top Quality 1.71 Inch Tetragramma marticense (Sea Urchin) Cretaceous KemKem_Crocodile_Species Sertich and O'Connor 2014 and
Yard notes & kiln story
Description
Sertich and O'Connor 2014 and Zaher et al
the pleochroic colors being usually green
Despite some teeth having restorations or reparations
Beautiful specimen very detailed
Its orange colors come from the limonite (iron oxide) that is the product of the oxidation of the original pyrite that mineralized these fossils
07388 - Top Quality 1.71 Inch Tetragramma marticense (Sea Urchin) Cretaceous KemKem_Crocodile_Species Sertich and O'Connor 2014 andNicely preserved specimen.