4" Knightia eocaena | 100% Natural | Green River Formation | Wyoming starfish For Ammonite to become an

For Ammonite to become an ammolite gemstone it has to be buried quickly

which are often confused without proper examination and preparation

Only 3mm at thinnest part

This stunning crystal has many beautiful terminated points

marking the end of the Cretaceous Period

4" Knightia eocaena | 100% Natural | Green River Formation | Wyoming starfish For Ammonite to become anKnightia eocaena Eocene (51. 98 Million Years Ago) Private Quarry, Green River Formation, Wyoming, USA Preparation by Carl Ulrich Obtained from the collection of Dr. William Rieger Plate approx. size: 10. 25" x 8. 75" Fish approx. size: 4" Knightia is an extinct genus of clupeid bony fish that lived in the freshwater lakes and rivers of North America and Asia during the Eocene epoch. The genus was erected by David Starr Jordan in 1907, in honor of the