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Where are the oldest fossil located?
The worlds oldest fossils were found in an ancient beach in Austrila, they are 3.4 billion years old and are fossils of cells. They have no bones and are mineralized spheres.
How are fossils organized in the fossil record?
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.
How do you estimate the age of the Earth using fossil record?
Cannot be done as the Earth is much older than the oldest fossils.
Are fossil sponges one of the oldest known animal fossils?
Yes, fossil sponges are among the oldest known animal fossils, dating back to over 600 million years ago. These simple multicellular organisms have left imprints in the rock record, providing valuable information about early animal evolution and Earth's history.
Which epoch does the oldest fossil bat come from?
The oldest fossil bats belong to the early Eocene epoch, dating back to around 52 million years ago. Some of the earliest known bat fossils have been found in locations such as the Green River Formation in North America and the Messel Pit in Germany.
Where in the fossil record can you find fossils of the oldest life forms?
The fossils of the oldest life forms can be found in the Precambrian period of the fossil record.
Where was the oldest Fossil found?
The oldest humanoid fossils were all found in Africa.
Was a women fossil found to be the oldest?
No. Trilobite fossils are much older.
When there are fossils in rock layers which are considered the oldest?
the ones closest to the bottom
Where are the oldest fossil located?
The worlds oldest fossils were found in an ancient beach in Austrila, they are 3.4 billion years old and are fossils of cells. They have no bones and are mineralized spheres.
Dating technique involving compraring fossils in rock layers?
Relative dating-comparing fossils related to how old other fossils are in the same sample of rock. If the rock has been undisturbed, the oldest rock will be at the bottom, therefore, the oldest fossils will also be at the bottom. the youngest rock will be at the top, therefore, the youngest fossils will be at the top. Absolute Dating-When you can figure out through testing the exact age of the fossil
How are fossils organized in the fossil record?
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.
How do you estimate the age of the Earth using fossil record?
Cannot be done as the Earth is much older than the oldest fossils.
How can scientists understand what the relevant age of a fossil is?
There are layers of earth that are deposited over time and based on where a fossil is in the layers a scientist can understand what the age of the fossil is relevant to another fossil in a different layer of earth. The law of superposition says that new sediment is deposited on top of old sediment so, the sediment in the bottom layer is the oldest and the sediment at the top is the youngest. Because of this the fossils in the bottom layer are the oldest and the fossils near the top are the youngest. Say you have 10 layers of rock, and the top layer is number 1 (the youngest) and the bottom layer is number 10 (the oldest). Even if a scientist can't tell exactly how old a fossil is if they know it is in a layer deeper than another fossil they know it is older than that fossil so, a fossil from layer 9 is older than a fossil from layer 5 which is also older than a fossil from layer 3. This is relative age. If we take it a step further... If a scientist knows that the fossil in layer 4 is 65 million years old than we not only know the fossils in layer 5-10 are older than the one in layer 4, but that they are all older than 65 million years old. So, the fossils in layer 1-3 would be less than 65 million years old. Scientists can know how old a specific fossil is sometimes based on whether or not it is an index fossil (a fossil that only occurred during a very small, specific interval of time), or if it is possible to carbon date it or something in the same layer.
How evolutionists determine if two organisms share a common ancestor?
Evolutionists determine that two organisms have a common ancestor is by looking at fossil evidence in different rock layers using the law of Superposition (Oldest layers are on the bottom, newest are on the top) and compare the skulls or other bones to each other in order of oldest to newest (or newest to oldest). Another way to determine this is to examine the amount of DNA a certain species shares with another species. An example of this would be that Humans share roughly 90% of our DNA with chimpanzees or the other Great Apes.
What dinosaur fossils were found in San Juan Argentina?
The oldest known dinosaur fossil found in San Juan, Argentina, is an Eoraptor.
What is the Archaologists' name who found the oldest human fossils in the Great Rift valley?
The archaeologist who found the oldest human fossils in the Great Rift Valley is Dr. Richard Leakey. He discovered the fossils in the Turkana Basin in Kenya, which have provided important insights into human evolution.
