Ageologist in south dakota finds an assemblage of dinosaur bones in an outcrop for the hilltown formation, and his colleague in china discovers an assemblage of bones from a different dinosaur in the liaoning formation. what can be said about the two formations?

They are no younger than Cretaceous in age.

Explanation:

It is a period in the geologic period which is in between the Jurassic period and the Tertiary periods. It is the period of the Mesozoic era. It is considered to be the longest period in the Phanerozoic Eon.

Thus the two formations that is the Hilltown formation and the Liaoning Formation are same in age as the Cretaceous period.

d.

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