| Cape Sebastian Sandstone | |
|---|---|
| Stratigraphic range: Campanian,83.6–72.1 Ma | |
| Type | Geological formation |
| Location | |
| Region |  Oregon |
TheCape Sebastian Sandstone is aMesozoic geologicformation in the state ofOregon in theUnited States.Hadrosauriddinosaur remains, such as thesacrum of the Cape Sebastian ornithopod (described in 2019), are among the fossils that have been recovered from the formation, although none have yet been referred to a specificgenus. The formation dates to theCampanian stage of theLate Cretaceous epoch.[1][2][3]
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