Structural control and Ostwald ripening as essential mechanisms during the fossilization process of sea urchin (Balanocidaris? Lambert) spines from Lower Cretaceous of Southern Spain

1. Alcalde-Fuentes, M.R.
2. López-Acevedo, V.
3. López-Andrés, S.
4. Perles, J.
5. Pérez-Valera, J.A.