I made a trip out to the Cretaceous road cut north of Snyder near Fluvanna in Scurry County one 102 degree summer day about 6 years ago. It's labeled on geologic maps as Edwards/Comanche/Walnut unconsolidated. It's fairly well picked over due to it's proximity to Lubbock and Texas Tech, but if you look hard enough between the rocks and in the gravel you can find the more demure fossils such as these Selenia sp echinoids. The one to the upper left is a crab carapace with a partial claw lying next to it.