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What is meant by paleontological evidence?

Paleontological Evidence Fossils are the geological remains and scientific traces of organisms in the past excavated from the soil. An example of paleontological evidence is the presence of rings on the surface of an oyster which represents the number of years of its life.

Which of the following is an example of paleontological evidence of evolution?

Fossils can also provide evidence of the evolutionary history of organisms. Paleontologists infer that whales evolved from land-dwelling animals, for instance. Fossils of extinct animals closely related to whales have front limbs like paddles, similar to front legs. They even have tiny back limbs.

What is the difference between paleontology and archeology?

Archeology is the study of human artifacts and remains, going back to about 3.3 million years ago. A Paleontologist studies fossils while an archaeologist studies human artifacts and its remains. The fossils studied by paleontologists and archeologists include bones, shells, body imprints, wood, and many others.

What can fossils tell us about?

Fossils give us information about how animals and plants lived in the past. Some animals and plant are only known to us as fossils. By studying the fossil record we can tell how long life has existed on Earth, and how different plants and animals are related to each other.

What evidence does the fossil record provide?

The Fossil Record Fossils provide evidence that organisms from the past are not the same as those found today, and demonstrate a progression of evolution. Scientists date and categorize fossils to determine when the organisms lived relative to each other.

What four characteristics are best for an index fossil to have?

A good index fossil is one with four characteristics: it is distinctive, widespread, abundant, and limited in geologic time. Because most fossil-bearing rocks formed in the ocean, the major index fossils are marine organisms.

What are 3 considerations for choosing a fossil to correlating rocks?

To be considered an index fossil, it must meet 3 criteria: The fossilized organism must be easily recognizable. It must be easy to ID and look unique. 2. The fossils have to be geographically widespread, or found over large areas so that we can use them to match layers separated by huge distances.

What type of rock characteristics are used in correlation?

Biostratigraphy and magnetostratigraphy are commonly used together to forge the best correlation possible. Unconformities are erosional surfaces within a sedimentary sequence. They represent missing time in the rock record.

What is correlation of rock layers?

The process of showing that rocks or geologic events occurring at different locations are of the same age is called correlation. Geologists have developed a system for correlating rocks by looking for similarities in composition and rock layer sequences at different locations.

What is the importance of rocks dating to the present?

Dynamic Earth – Dating rocks. Gaining estimates of ages of rocks is crucial for establishing not only the history of geological events but also for determining the rates of geological processes. It is possible to establish the relative order of events in some rocks.