If "Taurus" or "Bull" actually represents a ruler's name, it is mainly known from ivory tablets from the Abydos tomb U-j of Umm El Qa'ab and from a rock carving on the Gebel Tjauti mountain.

Egyptologist Günter Dreyer deduced the existence of King "Taurus" from incisions on a statue of the god Min, which he interpreted as line of succession.

[1][2] Further evidence of the existence of this ruler is the interpretation of a rock drawing discovered in 2003 on the Gebel Tjauti in the desert west of Thebes.

This battle was possibly part of the concentration of power in late prehistoric Egypt: Scorpion I, operating from Thinis, conquered Taurus' realm in the Naqada area.

[2][3] However, since the bull sign is never accompanied by a horus falcon or a gold rosette – indicators of rulers in the pre-dynastic period – some researchers doubt that it refers to a king.