The fossils of the chalk
The chalk is itself an accumulation of fossil fragments. In certain cases, whole individuals can be protected. According to their size, fossils are classified there:
- Microfossils and naanofossiles, with among which:
The fossil bodies can they left that imprints of their activity (ichnofaune). Finally, they can reshaped the chalky mud on or in which they lived (bioturbation).