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FIG. 9. — Sengoerichthys ottoman n. gen., n in A primitive megalichthyid fish (Sarcopterygii, Tetrapodomorpha) from the Upper Devonian of Turkey and its biogeographical implications

FIG. 9. — Sengoerichthys ottoman n. gen., n. sp., Upper Devonian,?Frasnian, red sandstone of Pamucak-Sapan Dere Unit, Upper Antalya Nappe; ArmutgÖZlek Tepe, Kemer, Antalya, Turkey; reconstruction of the palatoquadrate in lateral (A), medial (B), and posterior (C) views based on the specimen AT064 (Fig. 7A). Abbreviations: ac.qu, articular condyles of the quadrate; Ent, entopterygoid; in.pad, insertion area of the posterior adductor muscle of the mandible; pdn, posterodorsal notch of the entopterygoid; spc.g, groove for the spiracular canal; sph.re, spiraculo-hyomandibular recess. Scale bar: 10 mm.

FIG. 2. — Sengoerichthys ottoman n. gen., n in A primitive megalichthyid fish (Sarcopterygii, Tetrapodomorpha) from the Upper Devonian of Turkey and its biogeographical implications

FIG. 2. — Sengoerichthys ottoman n. gen., n. sp., Upper Devonian,?Frasnian, red sandstone of the Pamucak-Sapan Dere Unit, Upper Antalya Nappe; ArmutgÖZlek Tepe, Kemer, Antalya, Turkey; parieto-ethmoidal shield (AT050) in dorsal (A) and lateral (B) views, and internal mould of the sphenethmoid of the same specimen showing part of the palate and of the nasal capsules in dorsal view (C). Abbreviations: en, external nostril; nca, nasal capsule; onc, canal for the olfactory nerve. Scale bar: 10 mm.

FIG. 8. — A-E, Sengoerichthys ottoman n. gen., n in A primitive megalichthyid fish (Sarcopterygii, Tetrapodomorpha) from the Upper Devonian of Turkey and its biogeographical implications

FIG. 8. — A-E, Sengoerichthys ottoman n. gen., n. sp., Upper Devonian,?Frasnian, red sandstone of Pamucak-Sapan Dere Unit, Upper Antalya Nappe; ArmutgÖZlek Tepe, Kemer, Antalya, Turkey; A, incomplete left palatoquadrate and entopterygoid (AT064) in lateral (A1) and medial (A2) views; B, right entopterygoid in medial view (AT065); C, incomplete left entopterygoid in medial view (AT071); D, left cleithrum and scapulocoracoid (AT01) in medial (D1) and lateral (D2) views; E, incomplete left cleithrum in lateral view (AT02); F, G, cosmine covered elements assigned to Sengoerichthys n. gen. with some doubt; F,?anocleithrum in lateral view (AT066); G, scale or dermal bone fragment showing traces of cosmine resorption (AT070). Scale bar: 10 mm.

FIG. 7. — Sengoerichthys ottoman n. gen., n in A primitive megalichthyid fish (Sarcopterygii, Tetrapodomorpha) from the Upper Devonian of Turkey and its biogeographical implications

FIG. 7. — Sengoerichthys ottoman n. gen., n. sp., Upper Devonian,?Frasnian, red sandstone of Pamucak-Sapan Dere Unit, Upper Antalya Nappe; ArmutgÖZlek Tepe, Kemer, Antalya, Turkey; isolated maxilla (VDT10) in external view. Abbreviations: oa.Ju, overlap area for the jugal; oa.La, overlap area for the lacrimal. Scale bar: 10 mm.

FIG. 4. — Sengoerichthys ottoman n. gen., n in A primitive megalichthyid fish (Sarcopterygii, Tetrapodomorpha) from the Upper Devonian of Turkey and its biogeographical implications

FIG. 4. — Sengoerichthys ottoman n. gen., n. sp., Upper Devonian,?Frasnian, red sandstone of Pamucak-Sapan Dere Unit, Upper Antalya Nappe; ArmutgÖZlek Tepe, Kemer, Antalya, Turkey; internal moulds of otoccipitals in dorsal view (A, AT063; B, AT062). Abbreviations: Brf, fossa bridgei; pac, parotic crest; tfc, trigemino-facialis chamber. Scale bar: 10 mm.

FIG. 11. — Sengoerichthys ottoman n. gen., n in A primitive megalichthyid fish (Sarcopterygii, Tetrapodomorpha) from the Upper Devonian of Turkey and its biogeographical implications

FIG. 11. — Sengoerichthys ottoman n. gen., n. sp., Upper Devonian,?Frasnian, red sandstone of Pamucak-Sapan Dere Unit, Upper Antalya Nappe; ArmutgÖZlek Tepe, Kemer, Antalya, Turkey; right lower jaw in medial view based on the specimens AT055 and AT058 (Fig. 10A, B). Abbreviations: am.f, anterior mandibular fossa; da.co, denticulate area on the vertical lamina of the coronoids; f.co, coronoid fangs; m.sym, mandibular symphysis; Prart, prearticular; psym.f, parasymphysial fang; psym.p, parasymphysial plate. Scale bar: 10 mm.

Figure 21 in A new Thai Mesozoic lungfish (Sarcopterygii, Dipnoi) with an insight into post-Palaeozoic dipnoan evolution

Figure 21. Plot of the phylogenetic tree against stratigraphy and palaeogeography. The upper row shows schematic evolution of the palaeogeographical pattern over time. The lower row shows the phylogenetic tree included in the palaeogeography. Vicariant events are favoured over dispersal events.

Figure 17 in A new Thai Mesozoic lungfish (Sarcopterygii, Dipnoi) with an insight into post-Palaeozoic dipnoan evolution

Figure 17. Previous hypotheses of phylogenetic relationships within the dipnoan taxa included in the present study.

Figure 20 in A new Thai Mesozoic lungfish (Sarcopterygii, Dipnoi) with an insight into post-Palaeozoic dipnoan evolution

Figure 20. Plot of the phylogenetic tree against stratigraphy to show the correlation between stratigraphy and phylogeny.

Figure 18 in A new Thai Mesozoic lungfish (Sarcopterygii, Dipnoi) with an insight into post-Palaeozoic dipnoan evolution

Figure 18. Strict consensus tree of 18 equally parsimonious trees using Dipterus as outgroup (length = 29, CI = 0.759, RI = 0.825). On the right are shown the differences in the relationship patterns within the 50% majority rule tree. The main synapomorphies are exemplified under their respective node and the Bremer support above the nodes.

Figure 15 in A new Thai Mesozoic lungfish (Sarcopterygii, Dipnoi) with an insight into post-Palaeozoic dipnoan evolution

Figure 15. Relationships between Arganodus atlantis, Asiatoceratodus sharovi and Neoceratodus forsteri based on Schultze's (1981) interpretation of bone fusion (A) and relationships between 'Asiatoceratodus' (Arganodus) atlantis, Asiatoceratodus sharovi and Neoceratodus forsteri based on Kemp's (1998) interpretation of bone fusion (B).

Figure 14 in A new Thai Mesozoic lungfish (Sarcopterygii, Dipnoi) with an insight into post-Palaeozoic dipnoan evolution

Figure 14. Upper and lower tooth plates of lungfishes from various Asian Mesozoic localities referred to Ferganoceratodus. The upper row shows the plates with their actual position (right or left side) and respective size; the lower row shows the plates adjusted to a similar size and position for comparison.

Figure 13 in A new Thai Mesozoic lungfish (Sarcopterygii, Dipnoi) with an insight into post-Palaeozoic dipnoan evolution

Figure 13. Anteriormost ribs of Ferganoceratodus martini sp. nov. (holotype, TF 7712) in?dorsal view. Anterior extremity to the left. Scale bars: 20 mm.

Figure 11 in A new Thai Mesozoic lungfish (Sarcopterygii, Dipnoi) with an insight into post-Palaeozoic dipnoan evolution

Figure 11. Tooth plate microstructure of Ferganoceratodus martini sp. nov. (holotype, TF 7712). A, limit between the tooth plate and the supporting bone, with the base of the pulp cavity (on the left). B, detail of the spongy bone forming the base of the pulp cavity. C, fibrous structure of the spongy bone. D, occlusal surface showing ridges and pits. E, detail of pits.

Figure 12 in A new Thai Mesozoic lungfish (Sarcopterygii, Dipnoi) with an insight into post-Palaeozoic dipnoan evolution

Figure 12. Reconstruction of a scale of Ferganoceratodus martini sp. nov. (top) with locations of the micrographs of details from the holotype (TF 7712) (A–D). Anterior region in section (A) and dorsal view (C), and posterior region (B and D). Arrow indicates anterior end.

Figure 9 in A new Thai Mesozoic lungfish (Sarcopterygii, Dipnoi) with an insight into post-Palaeozoic dipnoan evolution

Figure 9. Ferganoceratodus martini sp. nov. Holotype TF 7712. Photographs of the parasphenoid in dorsal (A) and ventral (B) views. Scale bars: 15 mm.

Figure 10 in A new Thai Mesozoic lungfish (Sarcopterygii, Dipnoi) with an insight into post-Palaeozoic dipnoan evolution

Figure 10. Photographs and drawings of the mandible of Ferganoceratodus martini sp. nov. (holotype, TF 7712) in occlusal (A) and ventral (B) views. Scale bars: 15 mm. Note that the drawings were made with both hemi-mandibles in a slightly shifted position, respectively, to the photographs.

Figure 8 in A new Thai Mesozoic lungfish (Sarcopterygii, Dipnoi) with an insight into post-Palaeozoic dipnoan evolution

Figure 8. Ferganoceratodus martini sp. nov. Holotype TF 7712. Vomerine tooth. A, anterior or posterior view; B and C, basal views.

Figure 7 in A new Thai Mesozoic lungfish (Sarcopterygii, Dipnoi) with an insight into post-Palaeozoic dipnoan evolution

Figure 7. Ferganoceratodus martini sp. nov. Holotype TF 7712. Photographs and interpretative drawings of the pterygoids and upper tooth plates in occlusal view. Scale bars: 15 mm.

Figure 4 in A new Thai Mesozoic lungfish (Sarcopterygii, Dipnoi) with an insight into post-Palaeozoic dipnoan evolution

Figure 4. Semi-schematic drawings of the skulls of various taxa mentioned in the text. The sensory lines and canals are shown on the left part of the skull roofs with bold lines (canals above the bones) and dotted lines (canals bone-enclosed). Grey tone indicates cartilage (in dorsal views only) and shading tone indicates mineralization of the 'hard snout'.