 On 21 May 2009, the journal's managing editor coordinated with the ICZN to correct this oversight, publishing a comment to the original paper with an addendum stating that the requirements had been met as of that date.Consequently, though the description appeared in 2008, "Aerosteon" was not a valid name until 2009.The holotype specimen, MCNA-PV-3137 consists of a single tooth (which may instead belong to an abelisaurid), some cranial bones, a number of partial or complete vertebrae from the neck, back, and sacrum, several cervical and dorsal ribs, gastralia, furcula (wishbone), left scapulocoracoid, left ilium, and left and right pubes.