espèce (1) sédiment (1) produit (1) marqueur (1) faune (1) érosion (1) couverture (1) âge (1) Parts (1) Area (1) Age determination (1) Parts (1) Geological cross sections (1) Nannofossils (1) Area (1) Species (1) Matter (1) Holy Cross (1) Evaluation (1) Erosion (1) Discussion (1) Tax assessment (1) Animals (1) Age (1) Age (1) Erosion (1) faune (1) jatte (1)