After Sereno, 2012

<==o †Heterodontosauridae Kuhn, 1966 [non Romer, 1966]
   |?-+-- †Echinodon becklesii Owen, 1861; E.Cret. WEu.
   |  |-- †Fruitadens haagarorum Butler, Galton, Porro, Chiappe, Henderson & Erickson, 2010; L.Jur. NAm.
   |  `-- †Tianyulong confuciusi Zheng, You, Xu & Dong, 2009; E.Cret. EAs.
   `--o †Heterodontosaurinae Kuhn, 1966 [non Romer, 1966] sensu Sereno, 2012
      |-- †Lycorhinus angustidens Haughton, 1924 [incl. Lanasaurus scalpridens Gow, 1975; NHMUK RU A100] E.Jur. SAf.
      `--+-- †Abrictosaurus consors (Thulborn, 1974) Hopson, 1975a [Lycorhinus consors Thulborn, 1974] E.Jur. SAf.
         |-- †Heterodontosaurus tucki Crompton & Charig, 1962; E.Jur. SAf.
         `--+-- †Manidens condorensis Pol, Rauhut & Becerra, 2011; M.Jur. SSAm.
            `-- †Pegomastax africanus Sereno, 2012; E.Jur. SAf.

Heterodontosauridae incertae sedis:

Heterodontosauridae indet. [Kayenta Formation, Early Jurassic, North America]
    †Geranosaurus atavus Broom, 1911 [nomen dubium]

After Butler et al., 2009, Weishampel & Witmer, 1990, and Keesey, 1996-2000

<==o †Heterodontosauridae
   |-- †Lanasaurus
   `--o †Heterodontosaurinae
      |-- †Abrictosaurus
      `--o †Heterodontosaurini
         |-- †Lycorhinus
         |-- †Echinodon
         |-- †Tianyulong
         `--+-- †Fruitadens
            `--+-- NHMUK RU A100
               `-- †Heterodontosaurus

Reference(s):

  • Butler, R. J., Galton, P. M., Porro, L. B., Chiappe, L. M., Henderson, D. M. & Erickson, G. M., 2010: Lower limits of ornithischian dinosaur body size inferred from a new Upper Jurassic heterodontosaurid from North America.
    –Proceedings of the Royal Society B: Biological Sciences: Vol. 277, #1680, pp. 375-381 [doi: 10.1098/rspb.2009.1494]

After Pol, Rauhut & Becerra, 2011

<==o †Ornithischia
   |-- †Pisanosaurus
   |-- †Echinodon
   `--+--+-- †Eocursor
      |  `-- †Genasauria
      `--o †Heterodontosauridae
         |-- †Tianyulong
         `--+-- †Fruitadens
            `--+-- †Manidens
               `--+-- †Abrictosaurus
                  |-- NHMUK RU A100 / BMNH A100
                  |-- †Lycorhinus
                  `-- †Heterodontosaurus

Reference(s):

  • Pol, D., Rauhut, O. & Becerra, M., 2011: A Middle Jurassic heterodontosaurid dinosaur from Patagonia and the evolution of heterodontosaurids.
    –Naturwissenschaften: Vol. 98, #5, pp. 369-379 [doi: 10.1007/s00114-011-0780-5]

 

Reference(s):