FIGURE A5. States of crown undulation-based characters and distribution of transversal and marginal undulations in nonavian Theropoda. A. Fifth? left maxillary tooth of Herrerasaurus ischigualastensis (formerly Sanjuansaurus gordilloi, PVSJ 605) in lateroventral view displaying the well-visible (char. 109:2) but few (char. 110:0) transversal undulations on the crown. B. Fifth or sixth left maxillary tooth of Ceratosaurus nasicornis (USNM 4735) in labial view displaying the well-visible (char. 109:2) but few (char. 110:0) transversal undulations on the crown. C. Second left maxillary tooth of Majungasaurus crenatissimus (FMNH PR 2278) in medioposterior view displaying the well-visible (char. 109:2) but few (char. 110:0) transversal undulations on the crown, as well as the subrectangular maxillary alveoli (char. 23:1). D. Isolated lateral tooth of Megalosaurus bucklandii (OUMNH J.29866) in lateral view displaying the well-visible (char. 109:2) and numerous and closely packed (char. 110:1) transversal undulations on the crown. E. Fifth and sixth right maxillary teeth of Acrocanthosaurus atokensis (NCSM 14345) in lateral view displaying the well-visible (char. 109:2) but few (char. 110:0) transversal undulations, that cannot be confused with the pronounced (char. 112:1) and mesiodistally elongated (char. 111:2) marginal undulations adjacent to the distal carina. F. Eighth left maxillary tooth of Dromaeosaurus albertensis (AMNH 5356) in medial view showing the well-visible (char. 109:2) but few (char. 110:0) transversal undulations on the crown. G. Isolated lateral tooth of Carcharodontosaurus saharicus (UC unnumbered) in laterodistal view showing the elongated (char. 111:2), pronounced (char. 112:1) and mesio-distally oriented (char. 114:0) marginal undulations adjacent to the distal carina. H. Mesial margin of a left maxillary tooth in labialo-mesial view (H1) and distal margin of a right maxillary tooth in labialo-distal view (H2) of Irritator challengeri (SMNS 58022) displaying the elongated (char. 111:2) and mesio-distally oriented (char. 114:0) marginal undulations adjacent to the mesial carina, and the diagonally oriented marginal undulations (char. 114:1), adjacent to the distal carina. I. Isolated lateral tooth of Megalosaurus bucklandi (OUMNH J.23014) in latero-distal view displaying the tenuous (char. 109:2) and few (char. 110:0) transversal undulations on the crown, as well as the short (char. 111:1) and diagonally oriented (char. 114:1) marginal undulations, adjacent to the distal carina only (char. 113:1). J. Isolated lateral tooth of Afrovenator abakensis (UC UBA1) in latero-mesial view displaying the short (char. 111:1) marginal undulations, adjacent to the mesial carina only (char. 113:0). K. Isolated lateral tooth of Neovenator salerii (MIWG 6348) in labial view displaying the concave surface adjacent to the distal carina (char. 71:1), the elongated (char. 111:2), mesio-distally oriented (char. 114:0) marginal undulations, adjacent to the distal carina only (char. 113:1). L. Fourth left maxillary tooth of Ceratosaurus nasicornis (USNM 4735) in mesial view showing the short (char. 111:1) marginal undulations adjacent to the mesial carina only (char. 113:0).