| Unit S3U1 | |
|---|---|
| Stratigraphic range: Late Cretaceous | |
| Type | Geological formation |
| Location | |
| Region | Burgos |
| Country | Spain |
The Unit S3U1 is a geological formation in Burgos, Spain whose strata date back to the Late Cretaceous. Dinosaur remains are among the fossils that have been recovered from the formation. [1]
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