Figure 1
Taxonomic diversity of the genus Araripesuchus. Skulls in dorsal view in a: Araripesuchus gomesii (DGM 423-R); b: Araripesuchus wegeneri (MNN GAD 19); c: Araripesuchus patagonicus (MUC PV 269); d: Araripesuchus tsangatsangana (FMNH PR 2297); e: Araripesuchus buitreraensis (MPCA-PV 235); dentary in dorsal view in f: Araripesuchus rattoides (CMN 41893). Scale bars 10 mm.
Figure 2
Schematic chart showing the variation of premaxillary and maxillary dentition in Araripesuchus and Uruguaysuchus species.
Figure 3
Schematic chart showing the variation of dentary dentition in Araripesuchus and Uruguaysuchus species.
Figure 4
Detail of the skull of the specimen SMNK PAL 6404 (Crato Form) in ventral view showing the dentition. Scale bar = 10 mm. cte, caniniform tooth/teeth; ite, incisiform tooth/teeth; pcte, postcaniniform tooth/teeth; pmte, premaxillary tooth/teeth; transitional tooth/teeth.
Figure 5
Araripesuchus gomesii (MN 7061-V) showing the lateral view of the palate. The maxillary dentition is shown in detail. Black arrows indicate the presence of five premaxillary alveoli. Scale bar = 10 mm. alv, alveolus/alveoli; cte, caniniform tooth/teeth; for, foramen/foramina; ite, incisiform tooth/teeth; m, maxilla; pcte, postcaniniform tooth/teeth; pl, palatine; pm, premaxilla; sn, slit-like notch.
Figure 6
Cranial remains of Uruguaysuchus aznarezi (FC-DPV 2320) in left lateral view. Scale bar = 10 mm. cte, caniniform tooth/teeth; ect, ectopterygoid; exna, external nares; for, foramen/foramina; ite, incisiform tooth/teeth; m, maxilla; pcte, postcaniniform tooth/teeth; pm, premaxilla; pty, pterygoid; ptyf, pterygoig flange.
Figure 7
Dentary of the holotype of Araripesuchus rattoides (CMN 41893) in right lateral view. Black arrow indicates the lateral mandibular concavity. Scale bar = 10 mm. cte, caniniform tooth/teeth; ite, incisiform tooth/teeth; pcte, postcaniniform tooth/teeth.
Figure 8
Dentary of Araripesuchus sp. (MPCA-PV 236) in dorsal view. Black arrow shows region where the procumbent alveoli and teeth are located. Scale bar = 10 mm. cte, caniniform tooth/teeth; ite, incisiform tooth/teeth; pcte, postcaniniform tooth/teeth.
Figure 9
Detail of the enlarged dentary tooth of Araripesuchus wegeneri (MNN GAD 20) in lingual view. Scale bar = 10 mm.
Figure 10
Left dentary bone of Araripesuchus tsangatsangana (FMNH PR 2318) in left lateral view. Scale bar = 10 mm. be, buccal emargination; cte, caniniform tooth/teeth; d, dentary; for, foramen/foramina; ite, incisiform tooth/teeth; pcte, postcaniniform tooth/teeth.
Figure 11
Detail of the anterior region of the mandible of Uruguaysuchus aznarezi (FC-DPV 2320) in left lateral view. Out of scale. be, buccal emargination; d, dentary; for, foramen/foramina; ite, incisiform tooth/teeth; pcte, postcaniniform tooth/teeth.
Figure 12
Dentary of Araripesuchus rattoides UCRC PV3 (left) and the holotype CMN 41893 (right) in dorsal view. Scale bar = 10 mm. de, dentary; cte, caniniform tooth/teeth; ite, incisiform tooth/teeth; pcte, postcaniniform tooth/teeth.
Figure 3
Schematic chart showing the variation of dentary dentition in Araripesuchus and Uruguaysuchus species.
Figure 4
Detail of the skull of the specimen SMNK PAL 6404 (Crato Form) in ventral view showing the dentition. Scale bar = 10 mm. cte, caniniform tooth/teeth; ite, incisiform tooth/teeth; pcte, postcaniniform tooth/teeth; pmte, premaxillary tooth/teeth; transitional tooth/teeth.
Figure 5
Araripesuchus gomesii (MN 7061-V) showing the lateral view of the palate. The maxillary dentition is shown in detail. Black arrows indicate the presence of five premaxillary alveoli. Scale bar = 10 mm. alv, alveolus/alveoli; cte, caniniform tooth/teeth; for, foramen/foramina; ite, incisiform tooth/teeth; m, maxilla; pcte, postcaniniform tooth/teeth; pl, palatine; pm, premaxilla; sn, slit-like notch.
Figure 6
Cranial remains of Uruguaysuchus aznarezi (FC-DPV 2320) in left lateral view. Scale bar = 10 mm. cte, caniniform tooth/teeth; ect, ectopterygoid; exna, external nares; for, foramen/foramina; ite, incisiform tooth/teeth; m, maxilla; pcte, postcaniniform tooth/teeth; pm, premaxilla; pty, pterygoid; ptyf, pterygoig flange.
Figure 7
Dentary of the holotype of Araripesuchus rattoides (CMN 41893) in right lateral view. Black arrow indicates the lateral mandibular concavity. Scale bar = 10 mm. cte, caniniform tooth/teeth; ite, incisiform tooth/teeth; pcte, postcaniniform tooth/teeth.
Figure 8
Dentary of Araripesuchus sp. (MPCA-PV 236) in dorsal view. Black arrow shows region where the procumbent alveoli and teeth are located. Scale bar = 10 mm. cte, caniniform tooth/teeth; ite, incisiform tooth/teeth; pcte, postcaniniform tooth/teeth.
Figure 9
Detail of the enlarged dentary tooth of Araripesuchus wegeneri (MNN GAD 20) in lingual view. Scale bar = 10 mm.
Figure 10
Left dentary bone of Araripesuchus tsangatsangana (FMNH PR 2318) in left lateral view. Scale bar = 10 mm. be, buccal emargination; cte, caniniform tooth/teeth; d, dentary; for, foramen/foramina; ite, incisiform tooth/teeth; pcte, postcaniniform tooth/teeth.
Figure 11
Detail of the anterior region of the mandible of Uruguaysuchus aznarezi (FC-DPV 2320) in left lateral view. Out of scale. be, buccal emargination; d, dentary; for, foramen/foramina; ite, incisiform tooth/teeth; pcte, postcaniniform tooth/teeth.
Figure 12
Dentary of Araripesuchus rattoides UCRC PV3 (left) and the holotype CMN 41893 (right) in dorsal view. Scale bar = 10 mm. de, dentary; cte, caniniform tooth/teeth; ite, incisiform tooth/teeth; pcte, postcaniniform tooth/teeth.