Reptilia - Neornithischia - Thescelosauridae
Full reference: C. M. Sternberg. 1937. Classification of Thescelosaurus, with a description of a new species. Proceedings of the Geological Society of America 1936:375
Parent taxon: Neornithischia according to J. Jung et al. 2026
See also Barta and Norell 2021, Bonde et al. 2022, Brown et al. 2013, Fonseca et al. 2024, Herne et al. 2019, Kuhn 1964, Kuhn 1966, Madzia et al. 2018, Russell 1984, Tatarinov 1964, Thulborn 1974 and Thulborn 1977
Sister taxa: Agilisaurus, Enigmacursor, Hexinlusaurus, Jeholosauridae, Minimocursor, Nanosaurus, Neornithopoda, Pulaosaurus, Pyrodontia, Sanxiasaurus, Stormbergia, Yandusaurus
Subtaxa: Doolysaurus Orodrominae Thescelosaurinae
Ecology: ground dwelling herbivore
Distribution:
• Cretaceous of Canada (21: Alberta, Saskatchewan collections), China (5), Mongolia (2), South Korea (3), United States (80: Alaska, Alberta, Colorado, Idaho, Montana, Nevada, New Mexico, North Dakota, South Dakota, Utah, Wyoming)
Total: 111 collections each including a single occurrence