After Unwin, 2003

<==o †Azhdarchoidea Unwin, 1992 sensu Unwin, 2003 (tapejarids, azhdarchids and related pterosaurs)
   |?- †Aurorazhdarcho primordius Frey, Meyer & Tischlinger, 2011
   |?- †Radiodactylus langstoni Andres & Myers, 2012
   |?- †Sinopterus dongi Wang & Zhou, 2003
   |-- †Tupuxuara longicristatus Kellner & Campos, 1988; L. Cret. SA. [taxonomic history]
   `--o †Neoazhdarchia Unwin, 2003
      |--o †Tapejara Kellner, 1989 [Tapejaridae Kellner, 1989]
      |  |-- †T. wellnhoferi Kellner, 1989
      |  `--+-- †T. navigans Frey, Martill & Buchy, 2003
      |     `-- †T. imperator Campos & Kellner, 1997
      `--o †Azhdachidae Nesov, 1984  [Titanopterygiidae Padian, 1984]
         |?- †Azhdarchidae genera et species indet. [L. Cret. SWAs.] [Dalla Vecchia, Arduini & Kellner, 2001]
         |-- †Arambourgiania philadelphiae (Arambourg, 1959) Nesov & Borkin, 1989 [Titanopteryx philadelphiae Arambourg, 1959 non Titanopteryx Enderlein, 1935 (an insect)]; U. Cret. SWAs.
         |-- †Azhdarcho langicollis Nesov, 1984; U. Cret. CAs.
         |-- †Doratorhynchus validus Seeley, 1875; L. Cret. WEu.
         |-- †Hatzegopteryx thambema Buffetaut, Grigorescu & Csiki, 2002; U. Cret. EEu.
         |-- †Montanazdarcho minor Padian, de Ricqlès & Horner, 1995; U. Cret. WNA.
         |-- †Phosphatodraco mauritanicus Pereda Suberbiola, et al., 2003; U.Cret. NWAf.
         |--o †Quetzalcoatlus Lawson, 1975; U. Cret. SWNA.
         |  |-- †Q. northropi Lawson, 1975
         |  `-- †Q. sp.
         `-- †Zhejiangopterus linhaiensis Cai & Feng, 1994; U. Cret. EAs.

Alterntive phylogeny after Martill & Naish, 2006:

<==o †Azhdarchoidea Unwin, 1992 sensu Unwin, 2003 (tapejarids, azhdarchids and related pterosaurs)
   |-- †Tapejara navigans
   `--+-- †Sinopterus dongi
      `--+-- †Tapejara wellnhoferi
         `--+-- †Tapejara imperator
            `--o †Neoazhdarchia
               |-- †Tupuxuara
               `--o †Azhdachidae
                  |?- †Azhdarchidae gen. et sp. indet.
                  |-- †Arambourgiania
                  |-- †Azhdarcho
                  |-- †Doratorhynchus
                  |-- †Hatzegopteryx
                  |-- †Montanazdarcho
                  |-- †Phosphatodraco
                  |-- †Quetzalcoatlus
                  `-- †Zhejiangopterus

Reference(s):