This falls in the normal range of occipital profiles. See Alfredo Riedel's paper The Austrian "Blondvieh" cattle horncores - an archaeological view Plate 1 Fig 7. In Skeletons in her Cupboard Festschrift for Juliet Clutton-Brock, Oxbow Monograph 34.
Also look at Caroline Grigson's papers in J Arch Sci c. 1974.
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