"The Initial Series date of 184.108.40.206.0 may be found to the left (west) of the rear mask using bar-and-dot notation. Other texts of note include panels of glyphs along with a series of other hieroglyphs surrounding the seated portrait on the north side. Other glyph panels may be found on the sides of the monument. These text refer both to the crrent ruler, Sky Xul, and his predecessor Cauac SKy, astronomical events, and the historical relationship between Quirigua and the larger site of Copan."
Robert J. Sharer, Quirigua: A Classic Maya Center & Its Sculptures, Carolina Academic Press, 1990, p. 61