Echinoid 17
US$15.50
- Species: Holaster Simplex
- Size Length: 2.0 inches, (5.08 centimeters), Height: 1.50 inches, (3.81 centimeters), Width: 1.75 inches, (4.445 centimeters)
- Weight: 0.234 pounds (106 grams)
- Collecting Site: Timberbrook construction site
- Locality: Denton County, Justin, Texas
- Formation: Fort Worth Formation
- Age: 100 Million Years old