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A fossil that is found in the rock layers of only one geologic age and that is used to establish the age of the rock layers?
This fossil is called a index fossil. It is a species that is easily recognizable, widespread, and existed for a short period of time. By determining the age of the rock layer where the index fossil is found, geologists can establish the approximate age of the surrounding rocks.
A fossil found under a layer of rock is usually?
older than the rock layer above it and can provide information about the time period in which it lived and the environmental conditions at that time. This helps scientists estimate the age of the rock layers and understand the history of the area where the fossil was found.
How are index fossils different from original fossil remains?
Index fossils are original fossil remains, just a specific subcategory of them. Index fossils are used by paleontologists to identify a particular period of time and often a subperiod of time - the specific fossil is chosen as an index fossil because it is very specific to a time period and allows the other fossils and remains around them to be identified to the same time period.
What is fossils organisms that lived a short period of time called?
They are called index fossils.
What is a measurement of the earths history divided into time period?
fossil record geologic time scale
What type of rock is turritella agate?
Turritella agate is a type of fossiliferous agate that contains the remains of fossilized turritella snails. These snails lived during the Eocene period and their shells have been replaced by agate over time, creating a unique striped or spiral pattern in the stone.
The first dinosaur fossil and the fossil found on Vega Island in 1986 were representative of what geologic time period?
The first dinosaur fossil ever found in Antarctica is called Antarctopelta. Its fossils date to the late Cretaceous period. Cryolophosaurus, the first theropod discovered in Antarctica, date back to the early Jurassic period.
The first dinosaur fossil and the fossil on Vega island in 1986 were representatives of what geological time period?
The first dinosaur fossil ever found in Antarctica is called Antarctopelta. Its fossils date to the late Cretaceous period. Cryolophosaurus, the first theropod discovered in Antarctica, date back to the early Jurassic period.
What fossil lived for the longest period of time?
pelozic
What makes a species a good index fossil?
An index fossil is used as an indicator of which era/epoch was preserved. The major characteristic necessary to be an index fossil include abundance, widely distributed, but lived for a short period of time.
A fossil that is found in the rock layers of only one geologic age and that is used to establish the age of the rock layers?
This fossil is called a index fossil. It is a species that is easily recognizable, widespread, and existed for a short period of time. By determining the age of the rock layer where the index fossil is found, geologists can establish the approximate age of the surrounding rocks.
How paleontologists use trilobite fossil as index fossil for various geologic time period?
yeah
A fossil found under a layer of rock is usually?
older than the rock layer above it and can provide information about the time period in which it lived and the environmental conditions at that time. This helps scientists estimate the age of the rock layers and understand the history of the area where the fossil was found.
What dinosaur fossil was found in the transantarctic mountains in the summer of 1990 1991 during what geologic time period this dinosaur live?
Cryolophosaurus, from the early Jurassic.
When scientist identify the age of a fossil they?
Place it in a time period
How are index fossils different from original fossil remains?
Index fossils are original fossil remains, just a specific subcategory of them. Index fossils are used by paleontologists to identify a particular period of time and often a subperiod of time - the specific fossil is chosen as an index fossil because it is very specific to a time period and allows the other fossils and remains around them to be identified to the same time period.
What is fossils organisms that lived a short period of time called?
They are called index fossils.
