Scandynavian Senonian Flint : 3D documentation Maastrichtian
Świeciechów flint : 2D documentation Turonian
Świeciechów flint : 3D documentation Turonian
Banded flint : 3D documentation Upper Jurassic (Oxfordian/Kimmeridgian)
Banded flint : 2D documentation Upper Jurassic (Oxfordian/Kimmeridgian)
Scandynavian Senonian Flint : 2D documentation Maastrichtian