Back Laiyangosaurus Czech Laiyangosaurus youngi Spanish Laiyangosaurus French ライヤンゴサウルス Japanese Laiyangosaurus Dutch Laiyangosaurus youngi Ukrainian 萊陽龍屬 Chinese
| Laiyangosaurus Temporal range: Late Cretaceous,
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| Life restoration | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Clade: | Dinosauria |
| Clade: | †Ornithischia |
| Clade: | †Neornithischia |
| Clade: | †Ornithopoda |
| Family: | †Hadrosauridae |
| Subfamily: | †Saurolophinae |
| Tribe: | †Edmontosaurini |
| Genus: | †Laiyangosaurus Zhang et al., 2019 |
| Type species | |
| †Laiyangosaurus youngi Zhang et al., 2019
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Laiyangosaurus ("Laiyang lizard") is a genus of saurolophine hadrosaurid from the Late Cretaceous Jingangkou Formation of China. It is known from one species, L.youngi, found in the Laiyang Basin within the province of Shandong.