Which Of The Following Is A Good Index Fossil? - Fixanswer

There are some types of index fossils which include

Ammonites, Brachiopods, Graptolites, Nanofossils and Trilobites

. Ammonites: The fossil of ancient marine animals is said to be known as an ammonite index fossil. During the Mesozoic era, they were common (245 to 65 million years ago ).

Which fossil could be a good index fossil?

Trilobites

are good index fossils. Why are trilobite fossils useful as index fossils?

Which of the following is an important index fossil?

Graptolites

are important index fossils in the Silurian and Ordovician age. Ammonites are important index fossils for the Jurassic and Cretaceous era. Previously, especially macro fossils such as ammonites and graptolites were used. Nowadays, especially micro fossils such as conodonts and foraminifera are used.

What makes a good index fossil quizlet?

What makes a good index fossil and why is it different from other fossils?

It is distinctive, widespread, abundant and limited in geologic time. They were only alive for a short amount of time.

What are the 4 characteristics of an index fossil?

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. That being said, certain land organisms are useful in young rocks and specific regions.

What is an index fossil simple definition?

Index fossil,

any animal or plant preserved in the rock record of the Earth that is characteristic of a particular span of geologic time or environment

.

Will humans be a good index fossil?

Some fossils are more useful than others in establishing the age of rocks. These are called index fossils. …

It is possible that humans also will be good index fossils at some time in the distant future

. Humans have distinct hard parts, and we often bury our dead.

How do you find a good index fossil?

To find the index fossil you must

eliminate any fossils that don't show up in each rock outcrop

and those that show up in more than one layer per outcrop. We can eliminate “fossil 1” because it shows up in multiple layers in the same outcrop.

Which index fossil is youngest?

Early Pleistocene 0.5 million.
Tertiary Period.
Eocene.
Cretaceous Period 145 to 66 million.
Jurassic Period.
Triassic Period.
Permian Period.
Pennsylvanian Period.

What is the most famous index fossil?

Because they evolved rapidly, and moulted like other arthropods,

trilobites

serve as excellent index fossils, enabling geologists to date the age of the rocks in which they are found. Abundance: Trilobites are very well-known, and possibly the second-most famous fossil group after the dinosaurs.

Are trace fossils unique?

Ichnofossils, also known as trace fossils, are geological records of the activities and behaviors of past life. … These fossils are different from

body fossils that preserve the actual remains of a body such as shells or bones

.

Is Pecten an index fossil?

Pecten gibbus are

index fossils found in the Cenozoic Era in the Quaternary period

, 1.8 million years ago. This is because they allow geologists and paleontologists to find the fossil age by examining the relationship of a particular fossil with another event of a specific period.

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

The four main characteristics that make a fossil a good index fossil are that

the fossil is abundant, widespread, distintive and it has to be limited in geologic time

.

What are the 5 types of fossils?

Fossil Types

Five different types of fossils are

body fossils, molds and casts, petrification fossils, footprints and trackways, and coprolites

.

What is an index fossil and how is it used?

Keyed to the relative time scale are examples of index fossils, the forms of life which existed during limited periods of geologic time and thus are used as

guides to the age of the rocks in which they are preserved

.