Echinoid 23
US$12.00
- Species: Holaster Simplex
- Size Length: 2.25 inches, (5.715 centimeters), Height: 1.00 inches, (2.5 centimeters), Width: 2.1 inches, (5.334 centimeters)
- Weight: 0.326 pounds (148 grams)
- Collecting Site: Timberbrook construction site
- Locality: Denton County, Justin, Texas
- Formation: Fort Worth Formation
- Age: 100 Million Years old
- Oysters took over this fossil after the echinoid died.