To support the claim about the environmental conditions of Utah during the time when the fossils were laid down, the following two statements can be selected:
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Both fossils were found in the same layer of rock.
This indicates that they likely lived in the same environmental conditions and support the idea that the area was suitable for marine life during that period. -
Both of the fossils are sea-dwelling creatures that needed water to survive.
This suggests that Utah had significant bodies of water during that time, which is critical for understanding the marine environment in which these creatures lived.
These statements together provide strong evidence of a once aquatic environment in Utah during the Mesozoic era.