Lousberg flint : 3D documentation Upper Cretaceous (Maastrichtian)
Chocolate' flint : 3D documentation Upper Jurassic
Chocolate' flint : 3D documentation Upper Jurassic
Chocolate' flint : 3D documentation Upper Jurassic
Plattenhornstein chert (Tabular chert of the Baiersdorf-type) : 2D documentation Tithonian/Upper Jurassic
Plattenhornstein chert (Tabular chert of the Baiersdorf-type) : 3D documentation Tithonian/Upper Jurassic
Tabular chert of the Baiersdorf-type : 2D documentation Tithonian/Upper Jura
Tabular chert of the Baiersdorf-type : 2D documentation Tithonian/Upper Jura