There is also a direct relationship between specific groups of objects, such as the core and the lunates struck from the same, rare nodule of flint, implying that they were used at the same time.
Although any unretouched sliver of stone would provide an effective, sharp end to a spear, microliths such as lunates could be hailed in an orderly and predictable manner during stressful or demanding periods.
The second damaged handle thus becomes intelligible as a percussor for transforming blades into lunates by pressure-flaking.
For example, Goring-Morris recognizes continuity between lunates
and triangles, but Henry feels that these two classes are clearly distinguishable by any 'experienced typologist'.
As noted earlier, most Geometric Kebaran assemblages are characterized by trapeze/rectangles, others by triangles and others by lunates.
What Neeley & Barton fail to consider is the fact that many Natufian assemblages are characterized by lunates with the very distinctive bifacial Helwan retouch (Henry 1989a; Marks & Simmons 1977).
An example is on 1994: 284: 'while a geometric type, such as a trapeze, could have been the originally manufactured shape, it also could be produced by trimming a triangle, lunate or rectangle'.
Comparisons of lengths and widths for lunates and the combined group of trapezes and rectangles(3) from Epipalaeolithic assemblages are shown in FIGURES 9 & 10.
The mean widths of trapeze/rectangles and lunates differ only slightly (7.
The combined mean lengths of trapeze/rectangles and lunates differ only a little more than do widths (21.