The figure caption for Figure 1 misattributed one of the images to the wrong structure. The corrected figure caption is as follows:

Figure 1. (a) Mural from Uaxactun Structure B-XIII West Wall Room 7. (b) A 260-day calendar forms the basal register of the mural. (a, b) Reproduced courtesy of the Peabody Museum of Archaeology and Ethnology, Harvard University. Illustrated by Antonio Tejeda F. (after Smith 1950).

As well, on p. 467, right column, lines 12–15, the same misattribution was present. The corrected sentence is as follows:

Somewhat analogous to the Postclassic almanac on pages 12b–18b in the Madrid Codex, a 260-day sequence was recorded inside Uaxactun’s Structure B-XIII as part of a painted mural (Morley 1946; Smith 1950; Figure 1).

The publisher regrets these errors.