Craniate with well-defined heads, thus excluding members of the chordate subphyla Tunicata (tunicates) and Cephalochordata (lancelets), but including Myxini, which have cartilaginous skulls and tooth-like structures composed of keratin. Craniata also includes all lampreys and armoured jawless fishes, armoured fish, sharks, skates, and rays, and teleostomians: spiny sharks, bony fish, lissamphibians, temnospondyls and protoreptiles, sauropsids and mammals. The craniate head consists of a brain, sense organs, including eyes, and a skull. In addition to distinct crania (sing. "cranium"), craniates possess many derived characteristics, which have allowed for more complexity to follow. Molecular-genetic analysis of craniates reveals that, compared to less complex
Master of Animals Master of Animals The Master of Animals or Lord of Animals is a motif in ancient art showing a human between and grasping two confronted animals. It is very widespread in the art of the Ancient Near East and Egypt. The figure is normally male, but not always, the animals may be realistic or fantastical, and the figure may have animal elements such as horns, or an animal upper body. Unless he is shown with specific divine attributes, he is typically described as a hero, although what the motif represented to the cultures which created the works probably varies greatly.