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see, http://en.wikipedia.org/wiki/Index_fossils

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17y ago

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Would a shark tooth make a good index fossil Why or Why not?

It depends on how old the tooth is,but other than that,unless it's a rare shark,it wouldn't make a very good index fossil.


What two things make a fossil an index fossil?

hiii


Why would polar bears not make good index fossils?

Polar bears would not make good index fossils because they have a relatively short geological lifespan, as they only evolved around 500,000 years ago. Additionally, their limited habitat in the Arctic makes them less widespread compared to organisms that thrived in diverse environments. For a fossil to be considered a good index fossil, it should represent a species that existed over a broad time frame and across various locations, which polar bears do not.


What 3 requirements do index fossils have?

To be an index fossil, it must be widespread, commonly found (sometimes in groups) and have a short life span for which it lived. If a fossil meets all three of these requirements, it is considered an index fossil.


What would be a good chance of leaving a fossil a jellyfish or a bony fish?

would a jellyfish make a good fossil


Which characteristics of a fossil would you make it useful as an index fossil in determining the relative age of widely separated rock layers?

C). a narrow time range and a wide geographic range


Which fossil would most likely make the best index fossil?

A good index fossil is one of an organism that rapidly evolves and is widespread throughout a geologic time period or periods. This makes it useful in determining the age of the rock formation in which it is contained.


Which make a species a good intex fossil?

A good index fossil possesses several key characteristics: it must be easily identifiable, widespread across various geographic regions, and exist for a relatively short, well-defined time period. This allows geologists to correlate the age of rock layers across different locations effectively. Additionally, the species should have a hard part, like shells or bones, to enhance fossilization potential. These traits make index fossils valuable for establishing the relative ages of sedimentary rock layers.


Why is phacops rana a type of trilobite considered a good index fossil to use to estimate the age of a layer?

Phacops rana is considered a good index fossil because it lived during a specific geological period, primarily the Devonian, which allows geologists to date rock layers accurately. Its widespread distribution and distinctive morphology make it easily recognizable and useful for correlating the ages of different rock formations. Additionally, it existed for a relatively short geological time span, enhancing its effectiveness in identifying and dating specific strata.


What words can you make with the letters ifloss?

fossil


When did organisms that formed index fossils?

Organisms that formed index fossils existed during specific time periods in Earth's history. These organisms lived in abundance, had a widespread distribution, and have distinctive features that make them easy to identify in the fossil record. By studying these index fossils, scientists can determine the relative age of the rocks in which they are found.


What is a index card?

index card is that you make me angry !! that's all thank you !