Before revision: Vertebra of Europasaurus being prepared out of the rock Fossil preparation is the act of preparing fossil specimens for use in research or for exhibition, and involves removing rocky matrix surrounding them and cleaning them up.
After revision: paleontologicalVertebra of Europasaurus being prepared out of the rock Fossil preparation is the act of preparing fossil specimens for use in research or for exhibition, and involves removing rocky matrix surrounding them and cleaning them up.