Thanks to Judy Ackerman we have these nice photos of fossils that she took along the Lower Sunset Trail in Tom Mays Park. The Lower Sunset crosses the Permian rocks of the Franklins. The Permian Period is the youngest period of the Paleozoic. It dates from 299 to 251 million years ago. At the end of the Permian was the largest extinction event the world has ever seen.

We have often visited the Prehistoric Trackways in the Robledos. The trackways reveal traces of a Permian seacoast.