In rock layers, jellyfish fossils are found lower than trilobite fossils, and trilobite fossils are found lower than ammonite fossils. what can be determined from this information? trilobites existed before jellyfish and ammonites. jellyfish existed before trilobites and ammonites. ammonites existed before trilobites and jellyfish. jellyfish, trilobites, and ammonites lived together.

The answer to this question is B.) "Jellyfish existed before trilobites and ammonites."

1. law of superposition: when there are horizontal layers of rock. the layers at the top are the youngest.

2. law of uncomformity: where one layer is much younger than the previous one, therefore creating a gap in the time record.

3. inclusion: when there is a solid stone inside of another.

4. intrusion: a feature formed when a stone is filled with magma.

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