Fig. 7

Osteichthyan fishes suggesting shallow marine (a), or marginal marine/continental (b-i) faunal exchange between East Gondwana and South China. a Restoration (by R.E. Barwick) of the Early Devonian lungfish Speonesydrion from Burrinjuck (locality 5, Fig. 1); b-e cf. Kenichthys (previously ‘Gyroptychius? australis’) from Hatchery Creek; parietal (b and c, dorsal and ventral) and post-parietal (d, dorsal) skull shields, and right lower jaw (e, external view); fKenichthys from South China, parietal shield in ventral view; gMuranjilepis from central Australia, parietal shield, dorsal view; h and iTungsenia (South China) parietal shield, dorsal view (h) and CT scan image showing brain cavity (i). a-e from locality 5, g from locality 24 (Fig. 1); f, h and i from Yunnan Province, in the Pragian of Zhaotong (Tungsenia) and Emsian of Qujing (Kenichthys). Images not to scale. Abbreviations: cv= brain cavity, f.pin= pineal opening, nas.c= nasal capsule, orb= orbit (eye socket), Psp= parasphenoid bone in palate, re.pin= recess for pineal and para-pineal organs