Echinoid 18
US$9.00
- Species: Holaster Simplex
- Size Length: 1.6 inches, (4.064 centimeters), Height: 0.90 inches, (2.286 centimeters), Width: 1.50 inches, (3.81 centimeters)
- Weight: 0.128 pounds (58 grams)
- Collecting Site: Timberbrook construction site
- Locality: Denton County, Justin, Texas
- Formation: Fort Worth Formation
- Age: 100 Million Years old