Biology, 22.06.2019 09:40 QueenMiah16

Explain how paleontologists use trilobite fossils as index fossils for various geologic time periods.

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the trilobite is used as an index fossil for various geologic time periods as specific types of the trilobites were present in different geological time periods. they are a group of marine arthropods belonging to the class of trilobita.

explanation:

Answer from: ewaltz74

Trilobites were one of the best examples of index fossils because they were present for a relatively shorter period of time and were widely distributed. They were found to be existed only in the Paleozoic era.

The trilobites were efficient in dating rocks in which they were found to be embedded. I helped in determining the age of the rocks. They also provided sufficient data regarding the early climate and the food habitat of these organisms in the past. Thus, these data enabled the Paleontologists to reconstruct the paleoclimate.

These fossils also helped in the correlation of rocks, thereby helping in the field of biostratigraphy

Answer from: heroicblad

The carbon in their bones allow them to know what time period it comes from. This is called carbon-dating.

Answer from: gabrielaaaa1323

Trilobites were a widespread group of organisms that only existed during the Paleozoic era. Individual species evolved and went extinct during distinct time periods of this era, allowing for more precise geologic dating. In addition, trilobites were fairly large and hard-bodied, leaving abundant and easily identifiable fossils. These advantages make them one of the most useful index fossils available to scientists.
hope it helps

Answer from: lil2524

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.

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Explain how paleontologists use trilobite fossils as index fossils for various geologic time periods...

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