Table 1. Dimensions (cm) of isolated crown and select cranial bones of the holotypic specimen of Aerosteon riocoloradensis (MCNA-PV-3137).

Bone	Measurement	Length
Crown	Height Base, mesiodistal length Base, maximum labiolingual width	3.8 1.7 1.0
Prefrontal	Maximum length Maximum width	6.8 2.3
Postorbital	Maximum height Maximum anteroposterior length	11.5 11.4
Quadrate	Maximum height Head, anteroposterior length Head, transverse width Quadrate foramen, maximum height Quadrate foramen, maximum width Transverse width across condyles	16.3 2.6 2.4 2.7 1.7 7.9