L’évolution de la biodiversité au cours du temps

• A thin slide of Maastrichtian limestone (presence of globotruncana, large globigerins and heterohelicidae)
  
• A thin slide of Danian limestone (absence of globotruncana, presence of small globigerins)
  
• A preparation of whole microfossils extracted from the Maastrichtian marls (globotruncana, globigerins, heterohelicidae)
  
• A preparation of whole microfossils extracted from Danian marl (globigerins especially)
  
• An explanatory sheet (21 x 29.7 board) with colour photos of the thin rock slides and the limestone collection site.