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What is a measurement of the earths history divided into time period?
fossil record geologic time scale
What is a measurement of the earth history divided into time period?
fossil record geologic time scale
What is a measurement of the Earth's history divided into time period?
fossil record geologic time scale
Which New York State fossil is found in rock's of the same period of geologic history as meekpceras?
The Sea Scorpion (Eurypterus remipes).
How paleontologists use trilobite fossil as index fossil for various geologic time period?
yeah
What geologic time period was the trilobite fossil associated?
Trilobites were associated with the Paleozoic era, from the Cambrian to the Permian.
What is an organism used to identify a specific geologic time period called?
An organism used to identify a specific geologic time period is called an index fossil. Index fossils are used by geologists to narrow down the age of rocks and sediment layers based on the known age range of the fossil species.
What geologic period lasted seven eighths of the earths history?
The Precambrian time
Which of the following is not a geologic period of the Earth Jurassic Cretaceous Triassic Neoprene?
Neoprene is not a geologic period of the Earth. The Jurassic, Cretaceous, and Triassic are all recognized geologic periods that represent different intervals of time in the Earth's history.
When did abundant fossil evidence appear in the geologic record?
Abundant fossil evidence first appeared in the geologic record during the Cambrian Period, around 541 million years ago. This period marked the rapid diversification of multicellular organisms, leading to the Cambrian Explosion, which left behind a rich fossil record of early marine life.
Why did geologists develop the geologic time scale?
The geological time scale is the geologic history of the planet from formation to the present. It starts with large divisions of time called eons and is subdivided into successively smaller units of time based on dominant lifeforms, extinction events, even climate. The development of the geologic time scale was initially based on the observation and reasoning that deeper layers of rock are generally older than less deep layers in what is called the "Law of Superposition".Paleontologists look for index fossils in fossil bearing sedimentary rock. Index fossils are organisms that were widespread, rapidly evolving, and only existed for a short period of time as evidenced by their appearance in the fossil record of specific rock strata. The appearance of a fossil alongside an index fossil gives a rough approximation of the age of the fossil in relative terms as it would appear on the geologic time scale. The appearance of the same fossil alongside index fossils of different geologic ages means that the fossil organism spanned multiple geologic time periods. Associations of specific strata alongside radiographically datable igneous and metamorphic rock determines the absolute age of a fossil.A period of around 4,600,000,000 years, the largest groupings of geologic time are eons, followed in descending order by era, period, epoch, and age.The geologic time scale is very important, especially in fields involving the exploration and retrieval of fossil fuels, which are geologically date range specific.
Why are the meekoceras fossils one of the youngest fossils?
Meekoceras fossils are considered one of the youngest due to their presence in the Late Cretaceous period, specifically around 70 to 73 million years ago. They are part of a group of ammonites that thrived in marine environments just before the mass extinction event that wiped out many species, including the non-avian dinosaurs. Their relatively recent age in the fossil record provides important insights into the evolutionary history and diversity of cephalopods during that time.
