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Stenonychosaurus inequalis (Saurischia: Theropoda) from the Judith River (Oldman) Formation of Alberta: new findings on metatarsal structure

Publication: Canadian Journal of Earth Sciences
December 1985


A partial foot of Stenonychosaurus from the Judith River (Oldman) Formation, Dinosaur Provincial Park, Alberta, shows features in the metatarsus that have not previously been recognized. These include compression of metatarsal II and exclusion of the proximal half of metatarsal III from the anterior (= dorsal) surface of the metatarsus. Exclusion from the anterior surface of metatarsal III to this extent is unprecedented among theropods and further underscores the distinctiveness of the Sauromithoididae.


Une partie d'un pied de Stenonychosaurus trouvée dans la formation de Judith River (Oldman), dans le Parc provincial Dinosaur, en Alberta, exhibe des particularités dans le métatarse qui n'ont pas été reconnues antérieurement. Elles comprennent une compression du métatarsien II et une exclusion de la moitié proximale du métatarsien III de la surface antérieure (= dorsale) du métatarse. Une exclusion de la surface antérieure du métatarsien III de cette étendue est sans précédent parmi les théropodes et elle accentue la distinction des Saurornithoïdidés. [Traduit par le journal]

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cover image Canadian Journal of Earth Sciences
Canadian Journal of Earth Sciences
Volume 22Number 12December 1985
Pages: 1813 - 1817


Version of record online: 8 February 2011


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Michael Clayton Wilson

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