New information on the holotype of "Chasmosaurus" russelli (Ornithischia, Ceratopsidae) necessitates the establishment of a new genus to receive the species

Citation

Holmes, R. B.; Mallon, J. C.; Ryan, M. J.; Evans, D. C. (2026). New information on the holotype of "Chasmosaurus" russelli (Ornithischia, Ceratopsidae) necessitates the establishment of a new genus to receive the species. Canadian Journal of Earth Sciences 63: 0031. doi:10.1139/cjes-2025-0031

Names first published here

• Cryptarcus genus

Cited by genera

• Cryptarcus

  Erects Cryptarcus for 'Chasmosaurus' russelli Sternberg, 1940 after re-preparing the holotype; iterative phylogeny could not resolve its placement within any existing chasmosaurine genus.