Fossil Oysters - Rastellum

US$26.00
  • Species: Rastellum carinaturn ( Lamarck, 1806 )
  • Size Diameter: 6.0 inches (15.34 centimeters)
  • Weight: 2.022 pounds (917 grams)
  • Collecting Site: Pecan Square construction site 
  • Locality: Denton County, Northlake, Texas
  • Formation: Washita Group, Main Street Formation
  • Age: 98 Million Years old
  • Note: Group of large Rastellum Oysters from the Main Street Limestone formation.  Another common name used by collectors is " denture clam ".