Fig2K.Copyright: Reprinted with permission from Elsevier from [doi:10.1016/S0925-4773(00)00323-3] Mech Dev 95: 35-46, Beckers J; Schlautmann N; Gossler A, The mouse rib-vertebrae mutation disrupts anterior-posterior somite patterning and genetically interacts with a delta1 null allele Copyright 2000