List of Mesozoic birds

[3] Lists of ex-birds are generally rare, but one example is the "Ex-Saurischian Taxa and Basal Saurischians" section of the Theropod Database.

Naming conventions and terminology follow the International Code of Zoological Nomenclature (ICZN).

Technical terms used include: The age column denotes the epoch of geologic time to which the fossils date.

The location column designates the geographic region where remains of the relevant genus have been found.

The regions used are countries, despite the fact that there were no political boundaries in Mesozoic times; they are only used for convenience.