Table 4. Bone surface modifications and fracturing at the four largest HR quarries.

Weathering, abrasion, and fracturing categories are adapted from Ryan et al. [25]. Fracturing data totals less than 100% due to a few bones fitting into unlisted categories.

Count
Feature	Stage/style	N	S	SE	T	Total	Percent
Weathering	0	3324	2184	1528	466	7502	98.5
	1	36	23	31	4	94	1.2
	2	9	1	2	1	13	0.2
	3	3	0	5	2	10	0.1
						n = 7619
Abrasion	0	3431	2236	1589	490	7746	97.0
	1	62	53	35	23	173	2.1
	2	32	11	9	2	54	0.7
	3	4	4	3	0	11	0.1
						n = 7984
Fracturing	Longitudinal	119	85	24	16	244	0.3
	Transverse	719	185	140	19	1063	13.0
	Greenstick/spiral	921	779	582	237	2519	30.8
	Indeterminate	93	84	110	17	304	3.7
	Unfractured	1724	1240	776	179	3919	48.0
						n = 8049