Full reference: R. J. Bertini and C. M. Carvalho. 2003. New tetrapod ichnotaxon (Unespichnium ornithopodianus) from the Jurassic Botucatu Formation, Paraná Basin, São Paulo State, southeastern Brazil. XVIII Congresso Brasileiro de Paleontologia: A Paleontologia e Suas Aplicações, 13-18 July 2003. Sociedade Brasileira de Paleontologia, Universidade de Brasília. Boletim de Resumos 72-73
Parent taxon: Ornithopoda according to R. J. Bertini and C. M. Carvalho 2003
Sister taxa: Anabisetia, Anomoepodidae, Bonaparteichnium, Brachypoda, Camptosaurichnus, Caririchnium, Dakotasaurus, Dinehichnus, Dinosauropodes, Dolichopoda, Euornithopoda, Fabrosauria, Gasparinisaura, Gideonmantellia, Hypsiloichnus, Hypsilophodon, Hypsilophodontia, Iguanodontia, Jeholosauridae, Jiayinosauropus, Kalodontoidea, Koreanosaurus, Laoyingshanpus, Leaellynasaura, Moyenisauropodidae, Nanosauridae, Ornithopodichnites, Ovaloolithidae, Qantassaurus, Staurichnium, Talenkauen, Tetrapodosauridae, Thescelosauridae, Trachodontoidea, Trinisaura, Wintonopus, Yueosaurus
Subtaxa: Unespichnium ornithopodianus
Type: Unespichnium ornithopodianus
Ecology: ground dwelling herbivore