Table 3. General measurements (in mm and g) of positives detached during the experiments.

Group categories follow the classification established by de la Mora and de la Torre [13] and expanded by Arroyo [61]. Group 2.3: positives that mimic characteristics of knapping flakes having platforms, bulb of percussion, and impact point; Group 4: irregular fragments without any butt, bulb, or platform; Group 5: positives smaller than 20 mm on which features such as percussive marks, platforms, or impact points are absent.

		Minimum	Maximum	Mean	Std. Dev.
	Length	13	37	21.33	13.58
Group 2.3	Width	15	62	32.33	25.81
n = 3 (7.69%)	Thickness	3	11	6.00	4.36
	Weight	0.8	27.7	10.000	15.33
	Length	13	13	13.00
Group 4	Width	11	11	11.00
n = 1 (2.56%)	Thickness	6	6	6.00
	Weight	1.4	1.4	1.400
	Length	3	16	7.03	2.77
Group 5	Width	2	8	4.60	1.77
n = 35 (89.74%)	Thickness	1	5	1.54	0.95
	Weight	0.10	0.50	0.12	0.07