Echinoid 9
US$12.00
- Species: Holaster Simplex
- Fossil size: 2.0 inches long x 1.75 inches wide (5.08 centimeters long x 4.45 centimeters wide )
- Fossil Weight: 0.190 pounds (86 grams)
- Collecting Site: Timberbrook construction site
- Locality: Denton County, Justin, Texas
- Formation: Fort Worth Formation
- Age: 100 Million Years old