The Nosaurians were a sentient, bipedal, reptilian species native to the planet New Plympto in the Core Worlds. A Nosaurian was easily recognized by a row of long horns, a covering of tough scales, and a beakful of sharp teeth. Members of the species had the ability to produce a brief flash of light from inside their mouths, a knack they used for silent, long-distance communication. Nosaurians were colorblind, although few found this bothersome.