after 13 year of service
The age of a plant or animal in a fossil is determined by radiocarbon dating. This means scientists measure the amount of a special type of carbon in the fossil, to determine the date.
There was no maximum age limit in the Roman army. The minimum age limit was twenty, depending on the times, but if a fellow was satisfied with the army he could reenlist indefinitely.There was no maximum age limit in the Roman army. The minimum age limit was twenty, depending on the times, but if a fellow was satisfied with the army he could reenlist indefinitely.There was no maximum age limit in the Roman army. The minimum age limit was twenty, depending on the times, but if a fellow was satisfied with the army he could reenlist indefinitely.There was no maximum age limit in the Roman army. The minimum age limit was twenty, depending on the times, but if a fellow was satisfied with the army he could reenlist indefinitely.There was no maximum age limit in the Roman army. The minimum age limit was twenty, depending on the times, but if a fellow was satisfied with the army he could reenlist indefinitely.There was no maximum age limit in the Roman army. The minimum age limit was twenty, depending on the times, but if a fellow was satisfied with the army he could reenlist indefinitely.There was no maximum age limit in the Roman army. The minimum age limit was twenty, depending on the times, but if a fellow was satisfied with the army he could reenlist indefinitely.There was no maximum age limit in the Roman army. The minimum age limit was twenty, depending on the times, but if a fellow was satisfied with the army he could reenlist indefinitely.There was no maximum age limit in the Roman army. The minimum age limit was twenty, depending on the times, but if a fellow was satisfied with the army he could reenlist indefinitely.
45 years old
Minimum 17 Maximum 27 As per October 2008
An index fossil. An index fossil's age is known, allowing scientists to know the relative age of other fossils based on their position relative to the index fossil. (Ex. If a fossil is deeper in the earth, it is older than the index fossil)
The absolute age of the index fossil was determine by radioactive dating or another absolute method
According to the definition of "Index Fossils" the answer is no. The definition of an "Index Fossil" is - remains of an organism that lived in a particular geological age. While the track itself may indicate the age of sediment, it is not a fossil.
An index fossil.
Because if you know how old the fossil is, and you find the fossil inside a rock, you know that rock has a maxium age corresponding with the age of the fossil.
becaues it is that they been around so long
Index fossils can be used to help determine the relative age of rock layers. Index fossils are from species that only existed for a short time. Index fossils are found in rock layers. Trilobites and Graptolites are index fossils.
A trace fossil is one that merely indicates that an organism left evidence of its existence. Some examples would be burrows or footprints that appear in sedimentary rock. An index fossil is of an organism that dates to a particular time in the geologic record, the organism only appearing in a certain segment of that record. Index fossils are indicators of the age of the rock in which they are found.
They are called index fossils.
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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.
They are called index fossils, fossils of organisms that were widespread, evolving quickly, and only appeared in the geologic column for a specific length of time.