. Bulletin of the Natural Histort Museum. Geology series. 14 E. TRINKAUS. Fig. 11 Anterior (left) and posterior (right) views of the Gough's Cave 1 tibiae and fibulae, with the heavily reconstructed left tibia and fibula shown only in anterior view; x (° ± , N = 12) samples. The Gough's Cave 1 tibia also has clear retroversion of the condyles, with a medial retroversion angle of 15°. However, this value is also very close to the means of Mesolithic ( ± °, N = 18) and Mesolithic male (° ± °, N = 15) samples. All of these retroversion angles are normal for non- industr
. Bulletin of the Natural Histort Museum. Geology series. 14 E. TRINKAUS. Fig. 11 Anterior (left) and posterior (right) views of the Gough's Cave 1 tibiae and fibulae, with the heavily reconstructed left tibia and fibula shown only in anterior view; x (° ± , N = 12) samples. The Gough's Cave 1 tibia also has clear retroversion of the condyles, with a medial retroversion angle of 15°. However, this value is also very close to the means of Mesolithic ( ± °, N = 18) and Mesolithic male (° ± °, N = 15) samples. All of these retroversion angles are normal for non- industrial recent humans (Trinkaus, 1975a). Similarly, the overall dimensions of the tibial plateau, quantified by an index of maximum breadth versus articular length of for Gough's Cave 1, is normal for Mesolithic samples ( ± , N - 12, and ± , N = 11 for males only). One feature in which the Gough's Cave 1 proximal tibia is further from the mean of the comparative samples is in relative tuberosity projection, or the posterior displacement of the tibial condyles from the tibial tuberos- ity (a measure of the M. quadriceps femoris moment arm through the patellar ligament). The Gough's Cave 1 value of is significantly above the mean of a small Mesolithic pooled-sex sample ( ± , N = 6), and still well above the mean of a male sample ( ± , N = 4). Distal Epiphysis The Gough's Cave 1 tibial distal epiphysis is likewise unremarkable. Its talar trochlear articular surface, relative to tibial length, is similar in size to other Mesolithic tibiae. The index formed by the geometric mean of its breadth with the average of its depth measurements versus articular length is - this value is close to the means for Mesolithic ( ± , N = 23) and Mesolithic male ( ± , N = 18) samples. It does present a clear lateral squatting facet, wide and proximo-distal. There is no trace of a medial squatting facet or other rounding of th
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