State the principle of fossil succession in your own words.

How does the principle of fossil succession allow determination of relative ages?

Evaluate $A$ fossil being considered for use as an index fossil has been found in large numbers in many parts of the world and seems to be limited to rock layers from the Ordovician period. It closely resembles a Cambrian trilobite. Would this fossil be a good index fossil? Explain.

When looking at the fossil record, it shows a succession of life from ______ to more _____.

Which of Steno's principles states that most layers of sediments are deposited in a horizontal position? a. original horizontality b . cross-cutting relationships c. fossil succession d. superposition

What is the principle of fossil succession?

Scientists have found many echinoderm fossils from the Cambrian period, but they have found few fossils of other species from this period. What might explain the large number of fossilized echinoderms?

What is the goal of correlation?

What is the goal of correlation ?

a. Which group of animals was dominant during the Mesozoic Era? b. How was their small size helpful to the mammals of the Mesozoic? c. Many scientists think that the asteroid impact at the end of the Cretaceous prevented plant growth for many years. Although many dinosaurs were plant eaters, some were meat eaters. Develop a hypothesis to explain why no dinosaurs survived.

How did each philosophy view the age of Earth?

List these magmas in order from the lowest to highest silica $\left(S i O_{2}\right)$ content: basaltic (mafic), rhyolitic (felsic), and andesitic (intermediate).

List three examples of trace fossils.

Imagine that you have discovered an outcrop of sedimentary rock that contains fossil shark teeth and fossils of Archimedes. In which time periods might this rock have formed? From the ____ period through the ____ period.