BusyEagle and I ventured out to the Potomac River Miocene/Eocene cliffs today to take advantage of the warm weather. Shortly after arriving the rains came down and drenched us. We toughed it out for a while, and just before turning back I spotted this in the cliff (sorry about the blurriness of this pic).
Here is what it looks like after partial prep:
Seven rows with two rows of side teeth, about 1.5 inches long. I will probably take it out of the matrix to expose the other side. This is my first ray plate from this bed in 25 years of collecting.