Struthiomimus is an extinct genus of ornithomimid theropods that lived in North America during the Late Cretaceous.[1]
History[]
AMNH 5339, nearly complete skeleton of S. altus.
Credit: Skye McDavid.
In 1901, Lawrence Lambe discovered CMN 930, a partial pelvis, right leg, and left foot, in the Dinosaur Park Formation (Belly River Group) of Alberta, Canada. He described this as the new species Ornithomimus altus, placing it in the genus Ornithomimus.[1][2]
In 1914, Barnum Brown and Peter Kaisen discovered AMNH 5339, a nearly complete skeleton along the Red Deer River near Steveville, Alberta. [3] This specimen comes from the slightly older Oldman formation. [4][5] Based on this find, Henry Fairfield Osborn erected Struthiomimus as a subgenus of Ornithomimus.[6]
In 1972, Dale Russel elevated Struthiomimus to the status of genus.[1]
Description[]
An unnamed species is known from the Dinosaur Park and Lower Lance Formation, having a more slender metacarpus than S. altus[1].
Species[]

An ornithomimosaur runs from the Seiche wave at Tanis during the K-PG extinction event, where fish, dinosaurs and everything in it's path are swept away[7][8].
Credit: Joschua Knüppe.
Reassigned Species[]
- S. tenuis (=nomen dubium)[1]
- S. lonzeensis[1]
- S. breveterius[1]
- S. samueli[1]
- S. currellii (=S. breveterius, =Dromiceiomimus breveterius)[1]
- S. ingens (=S. breveterius, =Dromiceiomimus breveterius)
Synonyms[]
Notable Specimens[]
- CMN 930: The holotype of S. altus, partial pelvis, right leg, and left foot. [2]
- AMNH 5339: A nearly complete skeleton of S. altus, missing only the end of the tail and the cranium.[3]
- BHI 1266: A likely specimen of S. sedens.[1]
- TMP 1996.026.0001: A well preserved skull of S. altus.
References[]
Note: references appear as superscript numbers such as: [1].
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