8.5" Priscacara serrata | Green River Formation | Wyoming vertebrae These are NOT complete specimens

These are NOT complete specimens

Dimetrodon actually became extinct 40 million years before the first appearance of dinosaurs

It likely inhabited shallow marine environments

Weight: 3 lbs

A thin layer on the outside of the nodules is usually different in color

8.5" Priscacara serrata | Green River Formation | Wyoming vertebrae These are NOT complete specimensPriscacara serrata 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 Fish approx. size: 8. 5" Plate approx. size: 18" x 14" Stand not included. Order Perciformes Family Moronidae C. liops, P. serrata, H. hypsacantha, and undescribed Priscacara & Hypsiprisca species P. serrata is perhaps the most popular and sought after of the Green River