(en) Richard J. Butler, Peter M. Galton, Laura B. Porro, Luis M. Chiappe, D. M. Henderson et Gregory M. Erickson, « Lower limits of ornithischian dinosaur body size inferred from a new Upper Jurassic heterodontosaurid from North America », Proceedings of the Royal Society B, vol. 277, no 1680, , p. 375–381 (PMID19846460, PMCID2842649, DOI10.1098/rspb.2009.1494, lire en ligne [PDF])
(en) Richard J. Butler, Peter M. Galton, Laura B. Porro, Luis M. Chiappe, D. M. Henderson et Gregory M. Erickson, « Lower limits of ornithischian dinosaur body size inferred from a new Upper Jurassic heterodontosaurid from North America », Proceedings of the Royal Society B, vol. 277, no 1680, , p. 375–381 (PMID19846460, PMCID2842649, DOI10.1098/rspb.2009.1494, lire en ligne [PDF])
(en) Richard J. Butler, Peter M. Galton, Laura B. Porro, Luis M. Chiappe, D. M. Henderson et Gregory M. Erickson, « Lower limits of ornithischian dinosaur body size inferred from a new Upper Jurassic heterodontosaurid from North America », Proceedings of the Royal Society B, vol. 277, no 1680, , p. 375–381 (PMID19846460, PMCID2842649, DOI10.1098/rspb.2009.1494, lire en ligne [PDF])
(en) Richard J. Butler, Peter M. Galton, Laura B. Porro, Luis M. Chiappe, D. M. Henderson et Gregory M. Erickson, « Electronic supplementary material to "Lower limits of ornithischian dinosaur body size inferred from a new Upper Jurassic heterodontosaurid from North America" », Proceedings of the Royal Society B, vol. 277, no 1680, (lire en ligne [PDF])