Locality Layer
Muda, E of Emsian, lower ?
Muda, W of do II-V
Revilla de Santullán, S of 2a
Revilla de Santullán, S of 2b
Santibañez de Resoba Caliza de Montaña
Villabellaco 0,6 m above base of Villabellaco Fm.
Villabellaco 1-1,2 m above base of Villabellaco Fm.
Villabellaco 1-3 m above base of Villabellaco Fm.
Villabellaco 5 m above base of Villabellaco Fm.
Villabellaco grey limestone of Pe gamma age