The Magmatrox is a dinosaur-like alien with infinitely dense skin. It is an endangered species with only few remaining when the Red Sentients hunted them for their horns to enhance their psychic powers during the Sentient War. Magmatrox feed on vulkanite and converts it into energy so they can heal injuries and create magma blasts. Without a constant supply of vulkanite they become weak quickly. A Magmatrox's manure resembles that of a cut gemstone, which Stanford easily mistook for in disgust.