Tangasaurus is an extinct genus of the late Changhsingian Tangasaurids Neodiapsid , known from the late Permian period ( aquatic basal stage ) of Tanga , in northeastern Tanzania .
Tangasaurus is an extinct genus of aquatic basal tangasaurid neodiapsid known from the Late Permian period ( late Changhsingian stage ) of Tanga , northeastern Tanzania .