Echinoid - 12
US$34.00
- Species: Macraster Texanus, Roemer
- Size Diameter: 3.25 inches, (8.255 centimeters)
- Weight: 0.784 pounds (356 grams)
- Collecting Site: Timberbrook construction site, Oliver Creek
- Locality: Denton County, Justin, Texas
- Formation: Washita Group, Fort Worth Formation
- Age: 100 Million Years old
- Well preserved specimen. Found in interbedded shale zone between limestone beds.