Fig6F(left). Copyright: Reprinted with permission from Elsevier from [doi:10.1006/dbio.1999.9215] Dev Biol 209: 143-58, Henderson DJ; Conway SJ; Copp AJ, Rib truncations and fusions in the Sp2H mouse reveal a role for Pax3 in specification of the ventro-lateral and posterior parts of the somite. Copyright 1999