Mastodonsaurus (“breast tooth lizard”)

… is an extinct genus of temnospondyl amphibian from the Middle Triassic. It belongs to a Triassic group of temnospondyls called Capitosauria, characterized by their large body size and presumably aquatic lifestyles. Like those of many other capitosaurs, the head of Mastodonsaurus was triangular, reaching about 1.25 m (4.1 ft) in the largest specimens. The total length of the largest individuals is about 4 to 6 m (13 to 20 ft). The large, oval eye sockets are midway along the skull. The jaws are lined with conical teeth. Two large tusks project up from the end of the lower jaw, fitting through openings on the palate and emerging out from the top of the skull when the jaw is closed…

(read more: Wikipedia)

photo by Ghedoghedo; illustration by  Dmitry Bogdanov

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