05513 - Well Preserved Pyritized 1.34 Inch Goniatite Devonian Cephalopod Miscellaneous echinoderms expansion of gases produced by

expansion of gases produced by the decay of organic matter

Ragaini 1994 and Sepkoski 2002

Precious collection of 10 Black Squalicorax pristodontus (Crow Shark) from a new phosphate location in the Atlas mountains (Morocco)

Sister taxa: Cimolichthys

85 Inch / 22

05513 - Well Preserved Pyritized 1.34 Inch Goniatite Devonian Cephalopod Miscellaneous echinoderms expansion of gases produced byUnidentified 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.