A record of new lungfishes (Osteichthyes: Dipnoi) from the Carnian (Upper Triassic) of India

Numerous tooth plates of different types were recovered from the Upper Triassic Tiki Formation of India. Sharp crested tooth plates with five acute ridges, tubercles on the crests, robust and deep furrows, wide spaces between successive ridges and reticulate ornamentation on the occlusal surfaces are assigned to a new species of the dipnoan genus Ptychoceratodus. Another tooth plate, characterized by four ridges with conical and cusplet-like...