Hi Jane, I'm not sure it is possible to distinguish (osteologically) between sheep and goat fetal bones. See: Prummel, W. 1987. Atlas for the identification of foetal skeletal elements of cattle, horse, sheep and pig. Part 1. Archaeozoologia 1 (1):23-30. -. 1987. Atlas for the identification of foetal skeletal elements of cattle, horse, sheep and pig. Part 2. Archaeozoologia 1 (2):11-52. -. 1988. Atlas for the identification of foetal skeletal elements of cattle, horse, sheep and pig. Part 3. Archaeozoologia 2:13-26. Aaron -----Original Message----- From: Analysis of animal remains from archaeological sites [mailto:[log in to unmask]] On Behalf Of J. Sanford Sent: Monday, November 16, 2009 4:08 AM To: [log in to unmask] Subject: [ZOOARCH] Foetal Sheep/Goat Ageing Dear All, I am trying to sort out differentiation of pre- and post-natal bones for sheep and goat for sites from the Croatian Neolithic-Iron Age. Can anyone recommend articles detailing specific ways of differentiating (osteologically, not radiographically) between foetal and infant remains, as well as potentially mid- and late-term foetal remains and perhaps developmental changes in the first three months post-natal? Or, alternatively, does anyone have/know of collections of foetal and infant sheep and goat of known age (preferably of unimproved breeds)? Sincerely, Jane Sanford Candidate for the PhD Department of Archaeology University of Cambridge