| Coelophysoidea | Tooth row slightly constricted in the posterior part of the premaxilla (15:1). |
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| Averostra | Anterior premaxillary alveoli labio-lingually oriented, posterior premaxillary alveoli mesiodistally oriented (3:1); less than 14 denticles per 5mm on the mesial carina in mesialmost teeth (51:2); less than 16 denticles per 5mm on the mesial carina in lateral teeth (84:3). |
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| Spinosauridae | More than five premaxillary teeth (2:34); premaxillary tooth row anterior to external naris (14:1); maxillary alveoli subcircular in outline (23:2); mesial carina terminating well beneath the cervix in mesialmost teeth (50:2); flutes present on both labial and lingual sides in lateral teeth (107:2); deeply veined enamel texture in lateral teeth (117:2). |
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| Spinosaurinae | Mesial margin of lateral crown slightly convex, almost straight, apex centrally positioned (69:1). |
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| Avetheropoda | Outline of basal cross-section D-shaped or J-shaped in mesialmost tooth (41:3). |
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| Carcharodontosaurinae | Mesial carina terminating well beneath the cervix in lateral teeth (80:2). |
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| Tyrannosauroidea | Anteriormost dentary alveoli significantly smaller than mid- and posterior dentary alveoli (27:2); distal carina labially displaced and facing lingually or linguodistally in mesialmost teeth (48:2). |
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| Therizinosauroidea | Toothless premaxilla (1:1); constriction between root and crown present in some lateral teeth (64:0). |
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| Troodontidae | Anterior maxillary alveoli significantly smaller than posterior maxillary alveoli (18:2). |
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| Dromaeosauridae | Labial depression extending along the basal half of the crown or more apically in lateral teeth (73:2). |
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