Click the strata that represents rock formed about 75 million years ago.
Click the oldest strata in this column.
An unidentifiable piece of a fossil is found and absolute dated to about 20 million years ago. Click the fossil that is probably this mystery fossil.
Click the fossil that existed for the longest time at this site according to the absolute dating data.
Click the fossil that existed the shortest time at this site.
Fossil C disappears in Strata 3. Click the word that describes the most likely reason.
Click the strata formed most recently.
Most fossils are found in which type of rock?
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