Fig. 2From: Sequence of chondrocranial development in basal anurans—Let’s make a craniumD. scovazzi, Cartilaginous development of mandibular arch derived structures. Transverse histological sections of Stage A4 (first column), Stage D2 (second column), Stage D4 (third column), Stage C2 (fourth column) and Stage C4 (fifth column) show the chondrification process of the infrarostral cartilage (cart.), the suprarostral ala, the suprarostral corpus, the admandibular cartilage and Meckel's cartilage. Difficult observable structures are highlighted by dashed lines. Scale bars indicate 100 μmBack to article page