Research Scientist, Palaeobiology

Jordan Mallon in the badlands of Alberta.

Contact Information

Email: jmallon@nature.ca
Tel: 613.364.4094
Fax: 613.364.4027

Twitter: @Jordan_Mallon

Jordan Mallon studies the evolution and ecology of dinosaurs.

Specialties

  • Evolutionary palaeoecology.
  • Functional morphology.
  • Taphonomy.
  • Dinosaurs.

Education

  • Postdoctoral Fellow, Canadian Museum of Nature, Ottawa, Ontario, 2013–2014.
  • Ph.D., University of Calgary, Calgary, Alberta, 2006–2012.
  • B.Sc., Carleton University, Ottawa, Ontario, 2001–2005.

Profile

Jordan Mallon's research largely focuses on dinosaur ecology, particularly on those factors that influenced dinosaur diversity leading up to the end-Cretaceous mass extinction. To this end, Jordan studies dinosaur feeding adaptations, community structure and biogeography. By carefully examining feeding posture, skull and beak shape, jaw function and tooth wear, he has shown that diverse plant-eating dinosaurs living in Alberta 75 million years ago were able to coexist as a result of their varied dietary specializations.

Jordan is also interested in horned dinosaurs, which were among the most successful animals of their time. He investigates their lifestyles, growth, and evolution to determine what allowed them to thrive during the Late Cretaceous.

Jordan has helped to name a number of new fossil species, including Plioplatecarpus nichollsae (a mosasaur), Basilemys morrinensis (a turtle), and Spiclypeus shipporum (a horned dinosaur).

Main Research Projects

Professional Services

  • Adjunct Research Professor, Carleton University.
  • Section Editor, Vertebrate Anatomy Morphology Palaeontology.
  • Recommender, Peer Community in Paleontology.
  • Communications Committee, Society of Vertebrate Paleontology.

Students

Current students:

  • Marissa Livius (M.Sc., Carleton University).
  • Bryan Moore (M.Sc., Carleton University).
  • Arielle Noonan (B.Sc., University of Ottawa).
  • Mat Roloson (M.Sc., Carleton University).

Former students:

  • Jonathan Bura (B.Sc., University of Ottawa).
  • Brigid Christison (independent study, Carleton University).
  • Pearl Cohen (independent study, Carleton University).
  • Tom Dudgeon (M.Sc., Carleton University).
  • Zoe Landry (independent study, Carleton University).
  • Robbie Stewart (B.Sc., Carleton University).
  • Taia Wyenberg-Henzler (M.Sc., Carleton University).

Links

Google Scholar Profile
https://scholar.google.ca/citations?user=icx8YLkAAAAJ&hl=en

ORCID iD
https://orcid.org/0000-0002-8209-8827

Academia.edu
https://nature.academia.edu/JordanMallon

Let's Talk Science Profile
https://letstalkscience.ca/careers/jordan-mallon

Open-access journal Vertebrate Anatomy Morphology Palaeontology
https://ejournals.library.ualberta.ca/index.php/VAMP/index

Society of Vertebrate Paleontology
http://vertpaleo.org

Canadian Society of Vertebrate Palaeontology
http://csvp.ca

Department of Earth Sciences, Carleton University
http://earthsci.carleton.ca

PalEO Group
https://maddinlab.com/paleo

Publications

Hone, D., J.C. Mallon, P. Hennessey and L.M. Witmer. 2020. Ontogeny of a sexually selected structure in an extant archosaur Gavialis gangeticus (Pseudosuchia: Crocodylia) with implications for sexual dimorphism in dinosaurs. PeerJ 8: e9134. https://doi.org/10.7717/peerj.9134 Icon: Open access.

Dudgeon, T.W., H.C. Maddin, D.C. Evans and J.C. Mallon. 2020. The internal cranial anatomy of Champsosaurus: Implications for neurosensory function. Scientific Reports 10: 7122. https://doi.org/10.1038/s41598-020-63956-y Icon: Open access.

Christison, B.E., D.H. Tanke and J.C. Mallon. 2020. Canada's first known dinosaurs: Palaeontology and collecting history of Upper Cretaceous vertebrates in southern Alberta and Saskatchewan, 1874-1889. Earth Sciences History 39: 184–218. https://doi.org/10.17704/1944-6187-39.1.184

Mallon, J.C., J.R. Bura, D. Schumann and P.J. Currie. 2020. A problematic tyrannosaurid (Dinosauria: Theropoda) skeleton and its implications for tyrannosaurid diversity in the Horseshoe Canyon Formation (Upper Cretaceous) of Alberta. Anatomical Record 303: 673–690. https://doi.org/10.1002/ar.24199 Icon: Open access.

Dudgeon, T.W., H.C. Maddin, D.C. Evans and J.C. Mallon. 2020. Computed tomography (CT) analysis of the cranium of Champsosaurus lindoei and implications for the choristoderan neomorphic ossification. Journal of Anatomy 236: 630–659. https://doi.org/10.1111/joa.13134

Gordon, I.J., H.H.T. Prins, J. Mallon, L.D. Puk, E.B.P. Miranda, C. Starling-Manne, R. van der Wal, B. Moore, W. Foley, L. Lush, R. Maestri, I. Matsuda and M. Clauss. 2019. The ecology of browsing and grazing in other vertebrate taxa. In I.J. Gordon and H.H.T. Prins (Eds.), The Ecology of Browsing and Grazing II. Springer, Berlin, pp. 339–404. https://doi.org/10.1007/978-3-030-25865-8_15

Mallon, J. 2019. Sauropods under one (very high) roof. Peer Community in Paleontology 100003. https://doi.org/10.24072/pci.paleo.100003 Icon: Open access.

Mallon, J.C. 2019. Competition structured a Late Cretaceous megaherbivorous dinosaur assemblage. Scientific Reports 9: 15447. https://doi.org/10.1038/s41598-019-51709-5 Icon: Open access.

Stewart, R.F. and J.C. Mallon. 2018. Allometric growth in the skull of Tylosaurus proriger (Squamata: Mosasauridae) and its taxonomic implications. Vertebrate Anatomy Morphology Palaeontology 6: 75–90. https://doi.org/10.18435/vamp29339 Icon: Open access.

Mallon, J.C. and D.B. Brinkman. Basilemys morrinensis, a new species of nanhsiungchelyid turtle from the Horseshoe Canyon Formation (Upper Cretaceous) of Alberta, Canada. Journal of Vertebrate Paleontology 38: e1431922. https://doi.org/10.1080/02724634.2018.1431922 Icon: Open access.

Mallon, J.C., D.M. Henderson, C.M. McDonough and W.J. Loughry. 2018. A "bloat-and-float" taphonomic model best explains the upside-down preservation of ankylosaurs. Palaeogeography, Palaeoclimatology, Palaeoecology 497: 117–127. https://doi.org/10.1016/j.palaeo.2018.02.010 Icon: Open access.

Arbour, V. and J.C. Mallon. 2017. Unusual cranial and postcranial anatomy in the archetypal ankylosaur Ankylosaurus magniventris. FACETS 2: 764–794. https://doi.org/10.1139/facets-2017-0063 Icon: Open access.

Hone, D.W.E. and J.C. Mallon. 2017. Protracted growth impedes the detection of sexual dimorphism in non-avian dinosaurs. Palaeontology 60: 535–545. https://doi.org/10.1111/pala.12298

Mallon, J.C. 2017. Recognizing sexual dimorphism in the fossil record: Lessons from non-avian dinosaurs. Paleobiology 43: 495–507. https://doi.org/10.1017/pab.2016.51 Icon: Open access.

Xing, H., J.C. Mallon and M.L. Currie. 2017. Redescription of the skull of Edmontosaurus regalis (Ornithischia: Hadrosauridae), with comments on the phylogeny and biogeography of Hadrosaurinae. PLoS ONE 12: e0175253. https://doi.org/10.1371/journal.pone.0175253 Icon: Open access.

Ősi, A., E. Prondvai, J. Mallon and E.R. Bodor. 2017. Diversity and convergences in the evolution of feeding adaptations in ankylosaurs (Dinosauria: Ornithischia). Historical Biology 29: 539–570. https://doi.org/10.1080/08912963.2016.1208194

Ryan, M.J., R. Holmes, J. Mallon, M. Loewen and D.C. Evans. 2017. A basal ceratopsid (Centrosaurinae: Nasutoceratopsini) from the Campanian Oldman Formation (Campanian) of Alberta, Canada. Canadian Journal of Earth Sciences 54: 1–14. https://doi.org/10.1139/cjes-2016-0110

Mallon, J.C., C.J. Ott, P.L. Larson, E.M. Iuliano and D.C. Evans. 2016. Spiclypeus shipporum gen. et sp. nov., a boldly audacious new chasmosaurine ceratopsid (Dinosauria: Ornithischia) from the Judith River Formation (Upper Cretaceous: Campanian) of Montana, USA. PLoS ONE 11: e0154218. http://dx.plos.org/10.1371/journal.pone.0154218 Icon: Open access.

Mallon, J.C., M.J. Ryan and J.A. Campbell, J.A. 2015. Skull ontogeny in Arrhinoceratops brachyops (Ornithischia: Ceratopsidae) and other horned dinosaurs. Zoological Journal of the Linnean Society. 175: 910–929. https://doi.org/10.1111/zoj.12294 Icon: Open access.

Mallon, J.C., D.C. Evans, T.T. Tokaryk and M.L. Currie. 2015. First pachycephalosaurid (Dinosauria: Ornithischia) from the Frenchman Formation (upper Maastrichtian) of Saskatchewan, Canada. Cretaceous Research 56: 426–431. https://doi.org/10.1016/j.cretres.2015.06.005

Mallon, J.C. and J.S. Anderson. 2014. Jaw mechanics and the evolutionary palaeoecology of the megaherbivorous dinosaurs from the Dinosaur Park Formation (upper Campanian) of Alberta, Canada. Journal of Vertebrate Paleontology 35: e904323. https://doi.org/10.1080/02724634.2014.904323

Xing, H., X. Zhao, K. Wang, D. Li, S. Chen, J.C. Mallon, Y. Zhang and X. Xu. 2014. Comparative osteology and phylogenetic relationship of Edmontosaurus and Shantungosaurus (Dinosauria: Hadrosauridae) from the Upper Cretaceous of North America and East Asia. Acta Geologica Sinica 88: 1623–1652. https://doi.org/10.1111/1755-6724.12334

Mallon, J.C. and D.C. Evans. 2014. Taphonomy and habitat preference of North American pachycephalosaurids (Dinosauria: Ornithischia). Lethaia 47: 567–578. https://doi.org/10.1111/let.12082

Mallon, J.C. and J.S. Anderson. 2014. The functional and palaeoecological implications of tooth morphology and wear for the megaherbivorous dinosaurs from the Dinosaur Park Formation (upper Campanian) of Alberta, Canada. PLoS ONE 9: e98605. https://doi.org/10.1371/journal.pone.0098605 Icon: Open access.

Mallon, J.C., R. Holmes, J.S. Anderson, A.A. Farke and D.C. Evans. 2014. New information on the rare horned dinosaur Arrhinoceratops brachyops (Ornithischia: Ceratopsidae). Canadian Journal of Earth Sciences 51: 618–634. https://doi.org/10.1139/cjes-2014-0028

Mallon, J.C. and J.S. Anderson. 2014. Implications of beak morphology for the evolutionary palaeoecology of the megaherbivorous dinosaurs from the Dinosaur Park Formation (upper Campanian) of Alberta, Canada. Palaeogeography, Palaeoclimatology, Palaeoecology 394: 29–41. https://doi.org/10.1016/j.palaeo.2013.11.014

Mallon, J.C. and J.S. Anderson. 2013. Skull ecomorphology of megaherbivorous dinosaurs from the Dinosaur Park Formation (Upper Campanian) of Alberta, Canada. PLoS ONE 8: e67182. https://doi.org/10.1371/journal.pone.0067182 Icon: Open access.

Mallon, J.C., D.C. Evans, M.J. Ryan and J.S. Anderson. 2013. Feeding height stratification among the herbivorous dinosaurs from the Dinosaur Park Formation (upper Campanian) of Alberta, Canada. BMC Ecology 13: 14. https://doi.org/10.1186/1472-6785-13-14 Icon: Open access.

Mallon, J.C., D.C. Evans, M.J. Ryan and J.S. Anderson. 2012. Megaherbivorous dinosaur turnover in the Dinosaur Park Formation (upper Campanian) of Alberta, Canada. Palaeogeography, Palaeoclimatology, Palaeoecology 350–352: 124–138. https://doi.org/10.1016/j.palaeo.2012.06.024

Mallon, J.C., R. Holmes, D.A. Eberth, M.J. Ryan and J.S. Anderson. 2011. Variation in the skull of Anchiceratops (Dinosauria, Ceratopsidae) from the Horseshoe Canyon Formation (Upper Cretaceous) of Alberta. Journal of Vertebrate Paleontology 31: 1047–1071. https://doi.org/10.1080/02724634.2011.601484

Mallon, J.C. and R. Holmes. 2010. Description of a complete and fully articulated chasmosaurine postcranium previously assigned to Anchiceratops (Dinosauria: Ceratopsia). In Ryan, M.J., Chinnery-Algeier, B.J. and Eberth, D.A. (Eds.), New Perspectives on Horned Dinosaurs. Indiana University Press, Bloomington, pp. 189–202. 

Fraser, D., J.C. Mallon, R. Furr and J.M. Theodor. 2009. Improving the repeatability of low magnification microwear methods using high dynamic range imaging. Palaios 24: 818–825. https://doi.org/10.2110/palo.2009.p09-064r

Cuthbertson, R.S., J.C. Mallon, N.E. Campione and R.B. Holmes. 2007. A new species of mosasaur (Squamata: Mosasauridae) from the Pierre Shale (lower Campanian) of Manitoba. Canadian Journal of Earth Sciences 44: 593–606. https://doi.org/10.1139/e07-006

Mallon, J.C. and R.B. Holmes. 2006. A reevaluation of sexual dimorphism in the postcranium of the chasmosaurine ceratopsid Chasmosaurus belli (Dinosauria: Ornithischia). The Canadian Field-Naturalist 120: 403–412. http://dx.doi.org/10.22621/cfn.v120i4.347