sentence1: Tangasaurus is an extinct genus of late Changhsingian tangasaurid neodiapsid known from the Late Permian period ( aquatic basal stage ) of Tanga , northeastern Tanzania .
sentence2: 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 .