Had they [the ancients] dreamt this, they would have truthed it heaven.

As revealed by scanning and transmission electron microscopy, the cavities are arranged in a characteristic honeycomb-like pattern and each hair bundle is enclosed in an alveolus.

Age ranges of Brachylophosaurini are those recalibrated in Fig 1; age ranges of other taxa are approximate, and are based on unrecalibrated previously published dates.

Recall that the cyclicity of a polycycle in a family of equations is the maximal number of limit cycles that may occur from the polycycle in this family.