James Alexander Campbell, Michael J. Ryan, Claudia J. Schroder-Adams, Robert B. Holmes & David C. Evans (2019)
Temporal range extension and evolution of the chasmosaurine ceratopsid 'Vagaceratops' irvinensis (Dinosauria: Ornithischia) in the Upper Cretaceous (Campanian) Dinosaur Park Formation of Alberta. Vertebrate Anatomy Morphology Palaeontology 7: 83–100 DOI: https://doi.org/10.18435/vamp29356https://journals.library.ualberta.ca/vamp/index.php/VAMP/article/view/29356
James Alexander Campbell, Michael J. Ryan, Claudia J. Schroder-Adams, Robert B. Holmes & David C. Evans (2019)
Temporal range extension and evolution of the chasmosaurine ceratopsid 'Vagaceratops' irvinensis (Dinosauria: Ornithischia) in the Upper Cretaceous (Campanian) Dinosaur Park Formation of Alberta. Vertebrate Anatomy Morphology Palaeontology 7: 83–100 DOI: https://doi.org/10.18435/vamp29356https://journals.library.ualberta.ca/vamp/index.php/VAMP/article/view/29356