Table 3.
Distribution of ornamental and food shells at Ksar'Akil (percent NISP)
| Taxon | Stage
|
||
|---|---|---|---|
| 2b | 2a | 1 | |
| Layers
| |||
| XIV–XVIII | XIX–XX | XXI–XXIV | |
| Ornamental taxa | |||
| Marine gastropods | |||
| Nassarius gibbosula | 40% | 40% | 60% |
| Columbella rustica | 27% | 13% | 9% |
| Other species | 6% | 8% | 11% |
| Marine bivalves | |||
| Glycymeris sp. | 24% | 36% | 20% |
| Other species | 3% | — | <1% |
| Fresh/brackish water gastropods | |||
| Theodoxus jordani | — | 1% | — |
| Other species | — | 1% | — |
| Total NISP | 479 | 92 | 243 |
| Food taxa | |||
| Patella sp. | 17% | — | — |
| Monodonta turbinata | 56% | p | p |
| Murex trunculus | 3% | p | — |
| Acanthocardia tuberculata | 24%* | — | p |
| Ostrea edulis | — | — | p |
| Total NISP | 96 | 2 | 7 |
p, present but frequency too low to calculate percentage.
*
Acanthocardia may have been used both as an ornamental species and for food.