What primary element do paleontologists prioritize when discussing the 'location' of a dinosaur like *Xenoceratops*?

Answer

The rock sequence that contained the bones

For paleontologists investigating ancient life, the concept of 'location' transcends simple modern coordinates on a map. The critical element is identifying the precise rock sequence, or geological strata, in which the fossilized remains were discovered. In the case of *Xenoceratops*, the association with the Last Chance Member of the Hell Creek Formation acts as the paramount location marker. This sequence provides the necessary biostratigraphic framework, allowing researchers to date the specimen precisely and contextualize its unique morphology against known timelines and environments of the Late Cretaceous.

What primary element do paleontologists prioritize when discussing the 'location' of a dinosaur like *Xenoceratops*?
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