Anatolian obsidian was found at Jericho, indicating some form of trade. Microlithis dropped sharply in abundance during the PPNA, a marked departure from the Natufian. PPNA art was limited to anthropomorphic figurines of chalk and clay, although a few stone figurines have been found with crude outlines of features. Also, social stratification is indicated by a range of sizes amongst PPNA houses. Joint communal effort in the PPNA is evidenced by the tower and wall at Jericho.
Levantine Pre-Pottery Neolithic A sites include: Jericho and Nahal Oren in Israel; Netiv Ha-Gdud, Gilgal and Gesher in the Jordan Valley; and Hatula in the Judaean hills. The sites were either built upon or have been submerged under alluvial fans. Wall foundations at Jericho, Gilgal, Netiv Ha-Gdud and Nahal Oren are made of mortar-reinforced stones, slabs or even bricks. Actual walls were made of sticks and mud, or bricks. Jericho and Netiv Ha-Gdud yielded well-preserved loaf- (plano-convex) and cigar-shaped bricks with lengths of 30-40 cm.
Floorplans were circular or oval. Nahal Oren has yielded 13 structures, ranging from 5-15 sq m (most are 7-10). On the other hand, Netiv Ha-Gdud has yielded structures of adjoining small rooms that are each 6-10 sq m (smaller) to 20-30 sq m (larger). Roofing small rooms required only branches, sticks, hides or clay-covered mats; roofing larger rooms required additional support, likely by a centrally erected wooden post. At Jericho and Netiv Ha-Gdud, floors were plastered with clay or levigated mud; mats sometimes left impressions on wet clay. Floors were sometimes laid on a pebble or stone foundation. Nathal Oren’s clay floors were unpreserved — occupation levels were identified only by hearths, stone slabs, storage installations (30-50 cm wide/deep) and soil color changes.
| Sultanian | PPNA | Found in Mediterranean Zone north of Beersheba valley at Jericho (Tell el-Sultan), Gilgal and Netiv Ha-Gdud. |
|---|---|---|
| Khiamian | PPNA | Overlaps with Sultanian. Named after el-Khiam (in Egypt). |
| Harifian | PPNA | Negev and North Sinai. |