21268 - Pyritized Ammonites Wholesale Lots! 50 pieces each lot! Carinodens It is preserved in exceptional
Yard notes & kiln story
Description
It is preserved in exceptional way
Halisaurus walkeri
35 Inch = 9
with three pairs of curved projections bearing marginal spines
It is a tooth of the lower jaw of a cow shark
21268 - Pyritized Ammonites Wholesale Lots! 50 pieces each lot! Carinodens It is preserved in exceptionalPrecious lot of pyritized ammonites! Different species present! Each lot will include 50 specimens. 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.