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, Anatomical details of the holotype specimen (PRC-11) of Indosinosuchus potamosiamensis gen, FIGURE 6

. Thailand, A, oblique dorsolateral view of the right supratemporal fossa

, B, right anterolateral view of the antorbital area; C, right lateral view of the otic area

, Abbreviations: aof, antorbital fenestra; cdq, circular depression on quadrate; exo, exoccipital; fr, frontal; j, jugal; l, lacrimal; ltf, lower temporal fenestra; ltsph, laterosphenoid; mx, maxilla; n, nasal; on

, prootic; q, quadrate; qj, quadratojugal; sq, squamosal; sqs, squamosal flat surface; stf, supratemporal fenestra

V. , V. Northeastern-thailand, ;. , B. , C. et al., Abbreviations: an, angular; aof, antorbital fenestra; art, articular; boc, basioccipital; bsph, basisphenoid; ch, choanae; cr, cervical rib; cv, cervical vertebra; den, dentary; dv, dorsal vertebra; en, external nares; emf, external mandibular fenestra

, r, rib; san, surangular; sof; suborbital fenestra; sp, splenial; sq, squamosal; sqs, squamosal concave surface; 1-4, premaxillary alveolar count

, Photographs and B, line drawings of specimen PRC-238 of Indosinosuchus potamosiamensis gen. et sp. nov. from the Phu Kradung Formation of Phu Noi

, Thailand in dorsal view. Abbreviations: an, angular; aof, antorbital fenestra; art, articular

, pt, pterygoid; sof, suborbital fenestra; sp, splenial

, A, Photographs and B, line drawings of specimen PRC-238 of Indosinosuchus potamosiamensis gen, FIGURE 9

, Thailand in ventral view. Abbreviations: an, angular; boc, basioccipital; bsph, basisphenoid

, ch, choana; den, dentary; ec, ectopterygoid; emf, external mandibular fenestra

D. , F. , and H. , Silicon rubber endocast of the same specimen in lateral view with I, photograph and J, superimposed drawing. Scale bars equal 2 cm. Abbreviations: boc, basioccipital; bsph, basisphenoid; cB, crest B of Iordansky (1973); cb, cerebrum; cbl, cerebellum; ch, choana; dls, dorsal branch of longitudinal sinus; ec, ectopterygoid; exo, exoccipital; fcp, foramen caroticum posterius; fm, foramen magnum; fr, frontal; fv, foramen vagi; j, jugal; leu, lateral Eustachian opening; ltsp, laterosphenoid; mo, medulla oblonga; oc, FIGURE 10. Photographs of the partial skull dorsum of Indosinosuchus potamosiamensis gen. et sp. nov

, q, quadrate; soc, supraoccipital; sof, suborbital fenestra; sq, squamosal; sqs, squamosal flat surface; stf, supratemporal fenestra; tbi, tympanic bulla imprint

V. ,

, XII, exit for cranial nerve XII

, Detailed tooth morphology of Indosinosuchus potamosiamensis gen. et sp. nov. from the Phu Kradung Formation of Phu Noi. A, general aspect of the crown in mesiolabial view, FIGURE 11

, B, cross section in the apical region (PRC-14 belonging to PRC-11) and C, detail of the cross section. * indicate the mesiodistal carinae of the enamel and the arrow indicates the shape of the carina at the enamel-dentine junction

, Atlas (PRC-15) in A, anterior and B, ventral views; atlas-axis complex (PRC-17) in C, left lateral and D, ventral views; cervical vertebra (PRC-18) in E, right lateral and F, ventral views; left cervical rib (PRC-19) in G, posterior and H, medial views, FIGURE 12. The postcranial skeleton of Indosinosuchus potamosiamensis gen. et sp. nov. from the Phu Kradung Formation of Phu Noi

K. and P. , 22 articulated vertebral colum in left lateral view. Abbreviations: ana, axis neural arch; ax, axis; c, cervical vertebra; t, thoracic vertebra; s, sacral vertebra; ca, caudal vertebra

, The forelimb of Indosinosuchus potamosiamensis gen. et sp. nov. from the Phu Kradung Formation of Phu Noi, FIGURE 13

D. , Abbreviations: amer, anteromedial epicondylar ridge; dpc, deltopectoral crest; hh, humeral head; ler, lateral epicondylar ridge; scr, supracondylar ridge

, The hind limb of Indosinosuchus potamosiamensis gen. et sp. nov. from the Phu Kradung Formation of Phu Noi. Left femur (PRC-25 from specimen PRC-12) in A, medial

B. and ;. , Left ilium (PRC-26) in E, lateral and F, ventral views. G, right ischium (PRC-27) in medial view. Abbreviations: acetf, acetabular fossa; ap, anterior process; lc, lateral condyle; mc, medial condyle; 4t, fourth trochanter

, The armour of Indosinosuchus potamosiamensis gen. et sp. nov. from the Phu Kradung Formation of Phu Noi. A, isolated element of the dorsal shield, FIGURE 15, p.29

, B, connected elements of the ventral shield (PRC-30). Abbreviations: alp

, Strict consensus of 10 most parsimonious trees recovered in this analysis indicating a phylogenetic placement of the new Thai taxon within Teleosauroidea

, Rostrum of the specimen (IVPP RV 10098) referred to P. teleorhinus by Li (1993) in D, ventral view

, A, Detailed view of circular rosette-type bioerosion left by a putative dermestid larva on the B, dorsal surface of the skull (PRC-10) of Indosinosuchus potamosiamensis gen, FIGURE 18

, et sp. nov. from the Late Jurassic Phu Kradung Formation of Phu

, APPENDIX 2. List of characters used in the small datamatrix for exploring interrelationships of teleosaurids

. Ch, 1: dimensions of orbits relative to interorbital width: nearly equal/larger (0) or much smaller

. Ch, 2: antorbital fenestra: small but present (0) or absent (1)

. Ch, 3: nasal length: as long or longer than length of supratemporal fenestrae (0) or shorter

. Ch, 4: maxillary alveolar count: over 30 (0) or less than, p.30

. Ch, 5: anterior margin of supratemporal fenestra: gently convex (0) or perpendicular to sagittal plane (1) or pointed

. Ch, 6: supratemporal fenestra length/width ratio: equal or no more than 1.5 (0) or markedly longer than wide with ratio at or over 1, vol.8

. Ch, antorbital over total skull length ratio: mesorostrine, i.e. < 0.7 (0) or longirostrine, i.e. ratio between 0.75 and, vol.7, p.0

. Ch, 8: premaxillae in line with lateral edges of maxillary rostrum (0) or laterally expanded (1) in dorsal view

. Ch, , vol.9

. Ch, 10: posterior processes of nasal stop near mid-length level of prefrontal (0) or nearly reach posterior level of prefrontal

. Ch, 11: surface of tooth enamel ornamented with vertical ridges (0) or with discontinuous wrinkles

. Ch, 12: orbits facing laterally (0) or mostly dorsally (1)

, APPENDIX 2. (Continued)

. Ch, 13: in dorsal view, parietal exposure on posteromedian margin of skull table: restricted to posteriormost portion (0) or extends as a limited surface between the supratemporal fenestrae

. Ch, 14: humerus versus femur length: about one third shorter than femur (0) or less than half the length of femur

. Ch, 15: sacral vertebrae count: two (0) or three (1)

. Ch, 16: dorsal shield comprises subrectangular osteoderms (0) or also includes elements wider than long (1) in the posterior half of the trunk

. Ch, 17: anterior half of external mandibular fenestra narrower (0) or of same height (1) as posterior half

. Ch, 18: lateral margin of skull table as wide as orbital margin of skull (0) or wider