11.75" Diplomystus dentatus w/ fish in belly | Green River Formation | Wyoming chatoyant Youngite is a local name

Youngite is a local name applied to agatized brecciated jasper that is often found encrusted in chalcedony

It shared its habitat with other iconic Green River fishes like Knightia

which first appeared in Europe about 700

Celestite was named for its pale sky-blue color (from the Latin term caelestis meaning "heaven

Some authorities

11.75" Diplomystus dentatus w/ fish in belly | Green River Formation | Wyoming chatoyant Youngite is a local nameDiplomystus dentatus with fish in belly 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: 22" x 14" Diplomystus approx. size: 11. 75" This specimen features a beautifully preserved Diplomystus dentatus with a smaller fish inside its stomach. This rare occurrence provides a glimpse into a dynamic ecological event that