Post-medieval sheep (Ovis aries) metapodia from southern Britain

摘要

The 'improvement' of sheep (Ovis aries) in southern Britain during the post-medieval period is examined using measurements taken on the metacarpals and metatarsals from the late 18th to 19th centuries AD site of Tumbling Fields, Tiverton, Devon. This data set is a rare and important metric archive from which is derived information on the conformation (size and shape) of sheep. Comparisons are presented from other medieval and post-medieval sites, which demonstrate that Tumbling Fields is comparable to other sites of a similar period. The comparisons presented also reveal temporal variation with bones from later sites being taller and more robust on average than those from earlier sites. In addition, the abnormalities of sheep (O. aries) metapodia are examined. In particular, two different conditions are discussed: small, oval cavities in the proximal articulation of the metacarpals, and a ridge of bone on the proximal anterior shaft of the metatarsals. Comparisons are presented from other medieval and post-medieval sites, and potential aetiologies are discussed.