The below specimens are from matrix from the Miocene, Round Mountain Silt, Sharktooth Hill Fauna from the East Pit of the Ernst Ranch in Bakersfield, California. There were a high number of nice conditioned shark and ray specimens, fish teeth and some mammal teeth in the matrix. I'm only posting a few of the nicer shark and ray specimens of some of the species that I found in the matrix. These were the first pictures that I took with my new Dino-Lite AM4815ZT digital microscope.
If you mouse over the pictures you will see the file name which has the specimen size and my best effort at identification.
Some of the nicer shark teeth:
Cetorhinus huddlestoni. I found a large number of these. The below picture shows two gem jars with some of the nicer specimens that I found. The gem jar cups are 1.75 inches in diameter for size reference of the specimens:
Some Individual Cetorhinus huddlestoni teeth:
A few of the nicer ray teeth:
Here is a dermal denticle. I believe that it is an Echinorhinus dermal denticle: