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What else can I help you with?
Fossils such as trilobites that can be used to estabish the age of rocks are called?
I think they are called Index Fossils...
What organism alive today is related to the trilobite?
Trilobites are thought to have been a marine organism because the fossils are found in rocks that contain other salt-water animals. Trilobites are thought to be one of the earliest groups of arthropods.
What is unique about finding trilobites among the first fossil creatures?
Many fossils are actually far older; some going back 5 or 6 times as far in history. However, trilobites are some of the oldest 'macroscopic fossils' (fossils of bigger things than bacteria and single-celled organisms) simply because they were there in large enough numbers and in the right conditions to be fossilised first too.
What can you infer about other fossils in the same rock layer as trilobites?
It can be assumed that the organisms that created the fossils were a part of the same depositional environment and process, and roughly from the same time span of the rock that comprises the layer.
In what era did the trilobites occur?
trilobites appeared about 524 million years ago. We found this out by using relative dating (which is comparing the age of two fossils) and the most reliable absolute age (which tells you how old the fossil is by measuring radioactivity. The more radioactivity the older the fossil)
What is a common fossil beginning with 'T'?
Trilobites are common fossils throughout the Paleozoic.
What are types of fossils?
Trilobites, Ammonites
Why can trilobites be used as index fossils?
Trilobites: The Index Fossil There are many thousands of known species of trilobite fossils found worldwide. Trilobites are considered to be good index fossils because they evolved so rapidly, and this allows geologists the ability to date the rocks in which the trilobites are found. The discovery of trilobites is second only to the discovery of dinosaurs, and new species of trilobites are still being discovered today.
How we know trilobites existed?
The fossils of their shells, etc.
Fossils such as trilobites that can be used to estabish the age of rocks are called?
I think they are called Index Fossils...
Are trilobites used as index fossils?
because they changed slowly through time(:
Are there trilobites in Aruba's volcanic rock?
No. There are two reasons for this.You generally do not find fossils in volcanic rock.Aruba formed after trilobites went extinct.
What are some examples for index fossils that begin with the letter T?
trilobites
How do you make trilobite?
You don't. Trilobites are extinct and are only found as fossils.
Why did scientists use trilobites as index fossils?
Scientists used trilobites as index fossils because they were abundant, had a wide distribution, and had a relatively short existence in the fossil record. This made them useful for correlating rock layers from different locations and determining the relative ages of the rocks.
In rock layers jellyfish fossils are found lower than trilobite fossils and trilobite fossils are found lower than ammonite fossils. What can be determined from this information?
From the information provided, it can be determined that jellyfish are older than trilobites, and trilobites are older than ammonites. This suggests a chronological order of these organisms in the fossil record, with jellyfish appearing first, followed by trilobites, and then ammonites. This pattern aligns with the principles of stratigraphy, where older fossils are found in lower rock layers.
What is common fossils?
Common fossils can include ammonites, trilobites, brachiopods, and fossilized plant material like leaves and pollen. These fossils can be found in various sedimentary rock formations around the world and provide valuable insights into past life forms and environments.
