Gar Fish Vertebrae - Hell Creek Formation

This is a fossil Gar fish vertebrae from the Hell Creek Formation. The vertebrae of gar fish are unique for fish of the time in that they are opisthocoelous, meaning that the centrum is convex in the front and concave in the back. The specimen is .4" long, shows little weathering, and portions of the processes have eroded away. It comes in an acrylic display case.