Shape Occurrence (Cat. A) % (Cat. A) Occurrence (Cat. B) % (Cat. B)
direct sealing (Wg) 1 0.6 1 0.6
dome-shaped nodulus (We) 8 4.6 6 3.4
flat-based nodule (Wb) 69 39.4 2 1.1
roundel (Wc) 7 4.0 22 12.3
single-hole hanging nodule (Wa) 80 45.7 145 81.0
two-hole hanging nodule (Wd) 10 5.7 2 1.1
unidentifiable/non identificabile (Wy) 6 3.4 0 0.0