FIGURE 2 in Phylogenetic assessment of ultrastructural and histological characters of teeth in the Anostomoidea, Hemiodontidae and Parodontidae (Teleostei: Ostariophysi: Characiformes)

FIGURE 2. Apareiodon ibitiensis (Campos, 1944) MCP 14430, 98.26 mm SL - A. Premaxilla, cross section (10x). Arrow points to the bony bridge dividing the replacement teeth groups. B. Replacement teeth (20x). Arrow points to the apical region of replacement teeth. C: Replacement teeth detail (40x). D: Attachment region of functional teeth (20x). E. Premaxilla, cross section, rows of replacement teeth, each set is divided by a boney bridge (5x). Small arrow points to the bony bridge; larger arrow points to the replacement teeth. AM=ameloblasts; DF=functional teeth; DN=dentine; DS=replacement teeth; ES= enamel; LP=periodontal ligament; OD=odontoblasts; PA=dental papilla; PO=pulp; PMX=premaxilla; TC=connective tissue; TE=epithelial tissue; TO=bone tissue.