Named By: Qiang Ji, Mark Norell, Peter J. Makovicky, Keqin Gao, Shu-An Ji & Chongxi Yuan - 2003.
Classification: Chordata, Reptilia, Dinosauria, Saurischia, Theropoda, Maniraptoriformes, Ornithomimosauria.
Species: S. orientalis (type).
Size: Estimated 1.5 meters long. Skull 18.5 centimetres long.
Known locations: China, Liaoning Province - Yixian Formation.
Time period: Aptian of the Cretaceous.
Fossil representation: Partial skeleton and skull preserved on a slab.
Shenzhousaurus is one of the few
that are known to have had gastroliths inside their
stomachs. This has led to the suggestion that Shenzhousaurus
greater leaning towards a herbivorous diet since gastroliths are
usually associated with herbivorous animals. However it is not
unknown for some predatory animals to have them, including the
theropod dinosaur Lourinhanosaurus.
The presence of teeth in the lower jaw also confirms the placement of Shenzhousaurus as a basal ornithomimosaur since later forms would just have a toothless keratinous beak.
(with new discoveries this list is likely to change)
Archaeornithomimus (Ancient bird mimic)
Beishanlong (Beishan/White mountains dragon)
Deinocheirus (Terrible hand)
Gallimimus (Chicken mimic)
Garudimimus (Garuda mimic)
Harpymimus (Harpy mimic)
Kinnareemimus (Kinnaree mimic)
Ornithomimus (Bird mimic)
Pelecanimimus (Pelican mimic)
Qiupalong (Qiupa dragon)
Shenzhousaurus (Shenzhous lizard)
Sinornithomimus (Chinese bird mimic)
Struthiomimus (Ostrich mimic)
- An Early Ostrich Dinosaur and Implications for Ornithomimosaur Phylogeny. - American Museum Novitates. Q. Ji, M. Norell, P. J. Makovicky, K. Gao, S. Ji & C. Yuan - 2003.