| Gastonia Temporal range: Early Cretaceous,
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| Reconstructed skeleton of G. burgei, BYU Museum of Paleontology | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Clade: | Dinosauria |
| Clade: | †Ornithischia |
| Clade: | †Thyreophora |
| Clade: | †Ankylosauria |
| Family: | †Nodosauridae |
| Subfamily: | †Polacanthinae |
| Genus: | †Gastonia Kirkland, 1998 |
| Type species | |
| †Gastonia burgei Kirkland, 1998
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| Species | |
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Gastonia is a genus of herbivorous ankylosaurian dinosaur from the Early Cretaceous of North America, around 139 to 134.6 million years ago. It is often considered a nodosaurid closely related to Polacanthus. Gastonia has a sacral shield and large shoulder spikes.