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Trilobites were rapidly evolving and widespread organisms, making them ideal index fossils.
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How do Paleontologists use the remains of the Trilobites?
Paleontologists use the fossils of different aged trilobites to identify the age of rock formations and fossils in other locations. Similar trilobites found in British Columbia as found in Asia would indicate the rock was nearly the same age from both sites. May also mean that the two locations were once close together, but moved away due to plate tectonics.
What makes a fossil an index fossil?
fossils are preserved animals or plants. but index fossils are fossils have wide distribution,many of them,evolves rapidly, and very easy to recognize. Ammonites are index fossils. The fossils were made only in a certain short time period.
How does relative dating and absolute dating help scientists assemble a fossil record for an area?
Relative dating is the science determining the relative order of past events, without necessarily determining their absolute age Absolute dating is the process of determining an approximate computed age in archaeology and geology.
How can scientists use the fossil record to provide evidence that evolution of organisms has occurred over time?
Using methods such as radioactive dating, scientists can determine the approximate age of a fossil or the rock in which it was found. Utilizing this knowledge of approximate age, scientists can compare progressive fossils, and identify changes. Changes are often minimal, and sometimes organisms do not change at all for large amounts of time, making comparative analysis of fossils a tedious task. Some eras produced better fossils than others. This can have several causes, such as particularly prolific habitation of environments that more easily produce fossils, general population booms, certain mass extinction events, and even happenstance. Because some eras produce better or more fossils, and some produce few to almost none, the fossil record can sometimes falter. In such cases, scientific investigations may be forced to fill in blanks between species using genetic analysis of preceding and proceeding species or groups within species, if the fossil(s) contain(s) any remaining genetic material. In other cases, computers will be used to recreate images of the species based on fossils, and identify progression between species. In any case, the fossil record is often used as a base off of which to obtain or recreate further information about an organism's evolutionary history.
How do you scientists use rocks and fossils to understand age and geological history?
Aside from carbon-14, rocks that can be radiometrically dated are mostly igneous and metamorphic rocks. most sedimentary rocks cannot be dated by this method. this is because many sedimentary rocks are made up of particles eroded from older rocks. dateing these pieces only gives the age of the preexisting rock from which it came.
What do scientists use index fossils for?
Geologists use index fossils to define and identify geologic periods.
How paleontologists use trilobites fossils as index fossils for various geologic time periods?
Trilobites were rapidly evolving and widespread marine organisms that spanned a number of geologic time periods. Certain types of trilobites only appeared in specific segments of geologic time; therefore, when one of these trilobites is found, you can be certain that the rock layer it is found in is of a certain geologic age.
What do scientists use to mark boundaries in the geologic time scale?
I'm thinking it's index fossils because index fossils tell when or how old the layer it was found in. If that's what your asking.
To compare the relative ages of fossils scientists sometimes use an easily recognized species called?
To compare the relative ages of fossils, scientists use an early recognized species called an index fossil. An index fossil must have existed for a short period time and must have covered a wide geographical range.
How do paleontologist use trilobites as index fossils for various geological time periods?
Trilobites were rapidly evolving and widespread marine organisms that spanned a number of geologic time periods. Certain types of trilobites only appeared in specific segments of geologic time; therefore, when one of these trilobites is found, you can be certain that the rock layer it is found in is of a certain geologic age.
What is a an important tool scientists use to study the relative age of rocks?
Index fossils are used, and are of significant importance in finding the relative age of rock.
How do geologists use index fossils to determine rock age?
Index fossils, also known as zone or guide fossils, help date strata and sediment to determine the age of entrapment. The best index fossils are those that were abundant , common, and short lived.
How paleontologists use trilobite use fossils as index fossils for various geologic time periods?
yeah
What evidence do scientists use to study the ancient dinosaur?
Scientists use mainly fossils.
What do geologist use index fossils for?
to date a rock layer and other fossils within that layer
What do scientists use the fossil record for?
Recording fossils No.
How do Paleontologists use the remains of the Trilobites?
Paleontologists use the fossils of different aged trilobites to identify the age of rock formations and fossils in other locations. Similar trilobites found in British Columbia as found in Asia would indicate the rock was nearly the same age from both sites. May also mean that the two locations were once close together, but moved away due to plate tectonics.
