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Fig. 16 in Osteology of Andescynodon (Cynodontia: Traversodontidae) from the Middle Triassic of Argentina

Fig. 16. Regression of upper canine length on skull length: ln means ''natural logarithm''; circles indicate specimens referred to Rusconiodon, and crosses indicate specimens referred to Andescynodon.

Fig. 3 in Osteology of Andescynodon (Cynodontia: Traversodontidae) from the Middle Triassic of Argentina

Fig. 3. Reconstruction of the skull and lower jaw in A, dorsal view; B, ventral view; and C, lateral view. Abbreviations as in text.

Fig. 13. PVL 3894 in Osteology of Andescynodon (Cynodontia: Traversodontidae) from the Middle Triassic of Argentina

Fig. 13. PVL 3894, left humerus in A, dorsal; B, ventral; C, anterior; and D, posterior views; PVL 3890, E, right ulna in lateral view. Abbreviations as in text.

Fig. 2 in Osteology of Andescynodon (Cynodontia: Traversodontidae) from the Middle Triassic of Argentina

Fig. 2. The holotype of Rusconiodon mignonei (PVL 3840) in A, dorsal; B, ventral; C, lateral; and D, occipital views.

Fig. 11. PVL 4423 in Osteology of Andescynodon (Cynodontia: Traversodontidae) from the Middle Triassic of Argentina

Fig. 11. PVL 4423, right scapula in A, posterior; B lateral; C, anterior; and D, medial views. PVL 4428, right scapulocoracoid in E, lateral view. The arrow indicates the line of which two sides are glued in different directions. Abbreviations as in text.

Fig. 14 in Osteology of Andescynodon (Cynodontia: Traversodontidae) from the Middle Triassic of Argentina

Fig. 14. Pelvis in lateral view. A, PVL 3890, left ilium; B, PVL 3894, left pelvis; C, PVL 6226, right pelvis. Abbreviations as in text.

Fig. 1 in Osteology of Andescynodon (Cynodontia: Traversodontidae) from the Middle Triassic of Argentina

Fig. 1. The holotype of Andescynodon mendozensis (PVL 3833) in A, dorsal; B, ventral; and C, lateral views.

Fig. 8 in Osteology of Andescynodon (Cynodontia: Traversodontidae) from the Middle Triassic of Argentina

Fig. 8. Lower tooth series on left side (PVL 3894-1) in A, crown view; B and C, lingual view. C from figure 2 of Goñi and Goin (1988). Anterior is at right.

Fig. 10. PVL 4390. A in Osteology of Andescynodon (Cynodontia: Traversodontidae) from the Middle Triassic of Argentina

Fig. 10. PVL 4390. A, sacral region in dorsal view; third sacral vertebra and associated ribs in B, dorsal, C, ventral, D anterior, and E, posterior views. Abbreviations as in text.

Fig. 9. PVL 3894 in Osteology of Andescynodon (Cynodontia: Traversodontidae) from the Middle Triassic of Argentina

Fig. 9. PVL 3894, an anterior dorsal vertebra in A, lateral and B, dorsal views; C, the dorsal region of the vertebral column in ventral view; anterior is at right. Abbreviations as in text.

Fig. 12. PVL 3894 in Osteology of Andescynodon (Cynodontia: Traversodontidae) from the Middle Triassic of Argentina

Fig. 12. PVL 3894, right clavicle in A, anterodorsal; and B, posterior and slightly ventral views; left clavicle in C, anterodorsal; and D, posterior and slightly ventral views. Abbreviations as in text.

Fig. 7 in Osteology of Andescynodon (Cynodontia: Traversodontidae) from the Middle Triassic of Argentina

Fig. 7. Upper canine and postcanines on right side (PVL 3894-1) in A, crown view; B, labial view; C and D, lingual view. D from figure 1 of Goñi and Goin (1988). Anterior is at right except in B, in which anterior is at left.

Fig. 4. A in Osteology of Andescynodon (Cynodontia: Traversodontidae) from the Middle Triassic of Argentina

Fig. 4. A, anterolateral view of the skull of PVL 3899, showing the nasal region and incisors; B, lateral view of the skull and mandible of PVL 3900, showing the completeness of the lateral margin of the paracanine fossa. Abbreviations as in text.

FIGURE 16 in Two new tritylodontids (Synapsida, Cynodontia, Mammaliamorpha) from the Upper Jurassic, southwestern Mongolia

FIGURE 16. Strict consensus of four most parsimonious trees generated in a phylogenetic analysis of tritylodontid taxa. Support for nodes are shown as MP bootstrap values/Bremer support values.

FIGURE 8 in Two new tritylodontids (Synapsida, Cynodontia, Mammaliamorpha) from the Upper Jurassic, southwestern Mongolia

FIGURE 8. Upper postcanine dentition of Shartegodon altai PSS-MAE 633 (holotype) in occlusal views. The identity of the buccal, medial, and lingual cusps is labeled on the left PC2. Abbreviations: B, buccal; M, medial; L, lingual; PC, upper postcanine teeth.

FIGURE 14 in Two new tritylodontids (Synapsida, Cynodontia, Mammaliamorpha) from the Upper Jurassic, southwestern Mongolia

FIGURE 14. Postcranial elements of Nuurtherium baruunensis PSS-MAE 632 (holotype; top) with accompanying line drawing of recognizable bones (bottom). Gray indicates matrix. Abbreviations: AR, anterior rib; As, left astragalus; CV, caudal vertebrae; Cl, right clavicle; DV, dorsal vertebrae; F, left femur; mc, metacarpal; mp, metapodial; pc, postcanine teeth; PR, posterior rib; U, left ulna; S, right scapula; T, right tibia. Scale bar = 50 mm.

FIGURE 7 in Two new tritylodontids (Synapsida, Cynodontia, Mammaliamorpha) from the Upper Jurassic, southwestern Mongolia

FIGURE 7. Left partial ramus of Shartegodon altai PSS-MAE 633 (holotype) in (A) lateral and (B) medial views. Scale bar = 5 mm.

FIGURE 5 in Two new tritylodontids (Synapsida, Cynodontia, Mammaliamorpha) from the Upper Jurassic, southwestern Mongolia

FIGURE 5. Isolated right region of the basicranium of Shartegodon altai PSS-MAE 633 (holotype). Scale bar = 5 mm.

FIGURE 4 in Two new tritylodontids (Synapsida, Cynodontia, Mammaliamorpha) from the Upper Jurassic, southwestern Mongolia

FIGURE 4. The skull of Shartegodon altai PSS-MAE 633 (holotype) in (A) left lateral and (B) right lateral views (top) with accompanying line drawings (bottom). Dark gray indicates matrix; light gray indicates the upper postcanines. Abbreviations: Bo, basioccipital; CoP, coronoid process of dentary; F, foramina; I1, first upper incisor partial root; I2, second upper incisor partial root; IF, infraorbital foramen; J, jugal; La, lacrimal; MF, masseteric fossa; Mx, maxilla; N, nasal; PC, upper postcanine teeth; Pmx, premaxilla; Zy, zygoma. Scale bar = 5 mm.

FIGURE 11 in Two new tritylodontids (Synapsida, Cynodontia, Mammaliamorpha) from the Upper Jurassic, southwestern Mongolia

FIGURE 11. The skull of Nuurtherium baruunensis PSS-MAE 632 (holotype; above) with accompanying line drawing (opposite page). Dark gray indicates matrix; light gray indicates the upper postcanines. Abbreviations: AP, angular process of dentary; Co, coronoid; CoP, coronoid process of dentary; crt, crypt for replacement