This is a lot of two (2) fossil echinoid specimens recovered from the Glen Rose formation near the Paluxy River locality in Texas. The specimens from this area generally date from the Cretaceous period (approx. 66 to 145 million years ago). The specimens offered here are a "heart urchin" and a Salenia texana type.
Refer to the photos. The black centimeter cube is shown for scale and is not included. You are purchasing both specimens shown. Your purchase will include an ID label.