| Stenoplacosaurus Temporal range:
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|---|---|
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Reptilia |
| Order: | Squamata |
| Family: | Anguidae |
| Subfamily: | †Glyptosaurinae |
| Genus: | †Stenoplacosaurus Sullivan and Dong, 2018 |
| Type species | |
| †Helodermoides mongoliensis Sullivan, 1979
| |
Stenoplacosaurus is an extinct genus of glyptosaurine anguid lizards from the Eocene of Inner Mongolia, China. The genus is monotypic, containing only the species Stenoplacosaurus mongoliensis.