JAMBELI CULTURE — ESTRADA, MEGGERS, EVANS 497 



four smaller depressions 1 mm. deep runs down the center of each 

 wing. A rectangular projection at the front of the base is biconically 

 drilled, apparently for attachment. The size and shape suggest that 

 it may have formed part of an atlatl. Total height of the bird is 4.0 

 cm.; width 1.1 cm.; length from tail to front of projection, 4.0 cm. 



Stone Artifacts 



Only a few stone objects come from sites of the Jambeli culture. 

 They fall into two categories: utensils and ornaments. 



UTENSILS 



Metates. — Two metate fragments, one of sandstone and the other 

 of coarse-gi'ained conglomerate, come from the surface of 0-5: Em- 

 barcadero. Both have a slightly concave upper surface, worn smooth 

 and even. The larger fragment is thickest (3.5 cm.) at the center 

 and tapers toward the edge; the other has its maximum thickness at 

 the edge. The original sizes cannot be reconstructed. 



Manos (fig. 10). — One complete mano came from 0-5: Embarca- 

 dero surface and a fragment from 0-5, Cut 1, Level 60-80 cm. The 

 complete example, of gray-green gabbro, is 13.0 cm. long and 7.5 cm. 

 in maximum width. Both ends are worn convex, and wear is also 

 visible on all but one side. The fragment is part of a rough, rounded 

 cobble of gneiss, 7.0 cm. wide and 5.5 cm. thick, showing wear on one 

 side only. 



Hammerstones (figs. 11 and 12, 6). — Three cobbles of fine grained 

 quartzite, all from the surface of 0-6: Las Huacas, are battered on 

 one or more edges from hammering. Form is generally ovoid, length 

 from 7.5-9.2 cm. One has red paint covering one half of the surface 

 (fig. 12, b). 



Knife or saw (pi. 6, d). — A small fragment of fine grained sand- 

 stone from G-86, Cut 1, Level 120-140 cm. has a beveled edge that 

 could have been used for sawing or cutting. 



Bark beaters (pi. 6, b-c). — Two flat stone slabs, grooved on one 

 surface, have been identified as bark cloth beaters. The nearly com- 

 plete example (pi. 6, c) comes from G-L-30: Cangrejito. It is 6.5 

 cm. long, 4.5 cm. wide and 1.1 cm. thick. The form is rectanguloid 

 with rounded corners. The upper surface is flat and bears two 

 lengthwise grooves 2.5 mm. deep dividing the area approximately 

 into thirds. One groove is 3.5 mm. wide, the other 4.5 mm. wide. 

 The reverse surface is shghtly irregular. The edges are flat. The 

 fragment, from G-86, Cut 1, Level 60-80 cm., has four grooves 2.0-2.5 

 mm. wide and 5-7 mm. apart on the flat upper face. Thickness is 

 7.5 mm. 



