Folia archeologica 53.

Alfréd Dulai: Late Palaeolithic Fossil Collectors: Small Piles of Molluscs at Szob (Börzsöny Mts, North-Hungary)

34 ISTVÁN VÖRÖS wide and Hat. The dimensions of the ribs are listed in Table 2. The longest rib of the Egervár aurochs was the 8

t

h one; the widest ones were the 6

t

h-8

t

h ribs. At the lower third of the left side 10

t

h and the right side 9-10

l

h ribs the margo cranialis is protruding at the edges in an П-form sharp crista. At the upper third of the left side 3

r

d rib, the edge of the margo caudalis is rough, distorted with a concave surface that can be the result of a blow or a cleavage. The left side 11

t

h rib is broken on one place, while both of the 12

t

h ribs are broken at two places. The sin. 11

t

h rib (Fig. 2.2) is 720 mm long. The rib is broken obliquely, 300 mm from the caput costae, and a pseudoarthrosis (pseudo-joint) is formed. The broken surfaces are uneven with irregular peaks and cavities joining to one another, forming a pseudo-joint. Due to periostitis, the spongious bone substance is thickened, on both ends of the fracture irregular bulb of callus was formed. The upper part of the fracture is smaller (breadth: 53 mm, thickness: 30 mm), the lower part of the fracture is bigger (breadth: 70 mm, thickness: 31 mm). The pseudoarthrosis surfaces are perforated by small foramens. The sin 12

t

h rib (Fig. 2.3) is 680 mm long. The rib is broken at two places, 300 and 470 mm from the caput costae, respectively. At the upper oblique fracture, pseudoarthrosis (pseudo-joint) was formed. The injured ends of the rib are deformed. The end of the upper fractured part has a chisel-like peak (breadth: 42 mm, thickness: 22 mm), the end of the lower fractured part is notched in a V-shape (breadth: 50 mm, thickness 30 mm). The surfaces of the pseudoarthrosis are perforated by small foramens. The lower plane fracture healed without dislocatio with a thickened callus. The dimensions of the callus are the following: breadth 41, thickness 21 mm. The line of the fractura is still visible; the ossification of the broken surfaces is perfect. The dext. 12

t

h rib is 680 mm long. It is broken at two places, 370 mm and 480 mm from the caput costae, respectively. Both fractures healed without dislocatio with a thickened callus. The dimensions of the calluses are: breadth 37, thickness 1 7 mm. Nr. Length of outer curvature Distance between costa ends the Length of caput tuberculum costae and Greatest breadth corpus costae 1 .sin. 200 73 1 .dext. 360 Ш 30 3.S. 490 78 55 3.d. 280 73 4.s. 490 77 51 4.d 330 6.S. 700 560 80 58 G.d. 700 560 80 60 7.s. 730 610 86 57 i.A. 740 610 83 58 8.S. IbQ 040 8S 53 ad. 48 9.s. 730 ~610 ^78 43 10.

s. 730 610 65 38 lO.d. 730 600 63 T 38 1 l.s 720 570 62 1 35 12~s. 680 ~ 540 55 32 12d. ~ 680 580 58 31 Table 2. Egervár-Sárvíz canal. Fossil aurochs. Dimension of the ribs (in mm)