GarcíaA. C. GonzálezBelmonteJ. A., “Statistical analysis of megalithic tombs orientations in the Iberian Peninsula and neighbouring regions”, Journal for the history of astronomy, xli (2010), 225–38 (hereafter Paper 1).
2.
See, for example, Parker-PearsonM., New discoveries at Stonehenge (Amsterdam, 2008); and PrendergastF., “Visual signatures in the Irish Neolithic landscape: A wider perspective of the Irish passage tombs”, in Lights and shadows in cultural astronomy, ed. by ZeddaM.BelmonteJ. A. (Dolianova, 2007), 100–6.
3.
Most of the data analysed in that paper came from HoskinMichael, Tombs, temples and their orientations: A new perspective in Mediterranean prehistory (Bognor Regis, 2001); a few others were the work of the present authors.
4.
PramesS. A., Megalitos del Alto Aragón (Saragossa, 2007).
5.
Data from Hoskin, op. cit. (ref. 3), 238.
6.
The orientation data were obtained using a tandem including a high precision compass and clinometer, later corrected for magnetic declination. The error of an individual measurement should be considered of the order of ±½° for both azimuth and angular height. However, the error in the azimuth itself may be larger because of the characteristics of the dolmens and their varied state of preservation.
