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Fossils

This category is for questions about the bones, fragments, imprints, and other remainders from a different time. The questions and answer you will find here are history set in stone -- our past, immortalized in solid rock. You will also be able to find questions pertaining to the locations of these fossils, how you might identify them, and how they were formed.

3,454 Questions

Why teeth are the most abundant fossil of hominid?

It is living matter that has become mineralized (fossilized).

Explain how scientist use fossils to support the theory of evolution?

It's a fine bit of circular reasoning that requires that fossils found fit into the pre-decided place on the evolutionary chart. They then point to the fossil record as proof of the theory. There are many gaps and instances of "parallel evolution". For example, the focusing eye had to develop at least four separate times, for the evolutionary theory.

Answer:

Fossils are like the clues the police use to solve a crime.

Each one tells a story. Like clues to a crime, where the police don't have to find a print of every footstep taken by a subject or confirm every thing that he did, the clues paint a logical outline of all the events around the crime.

Like clues in a crime the police do not initially identify a person they want to pin the crime on and then seek to tie him to the event - they find a number of clues which identify potential subjects of interest. They then attempt to prove the relation of these suspects to the crime until the trail of evidence is strong and dependable. Usually multiple facts on the same evidence are considered - for a crime it might be fingerprints and video tape and eye witnesses, for fossils it could be carbon 14 and dendronchronology and geologic strata.

Is amber a fossil if there is an insect in it?

yes. it depends on the temperature of the amber. yes. it depends on the temperature of the amber.

In what type of rock do you find a fossil?

The vast majority of fossils are found in sedimentary rock. Igneous rock forms from magma; no chance for fossils to form there. Metamorphic rocks are other rock types that are changed by heat and pressure; their transformation and mineral reorganization causes very few fossils to be found there. Sedimentary rock can be formed from the accumulation of sediments and are often formed near ancient shores, basins, and lake beds. If an organism dies and is covered by sediments before being rotted or eaten by predatory organisms, it could eventually become part of the sedimentary layer that becomes rock.

Describe fossils in rock?

Fossil rocks are rocks containing the bones of ancient animals like dinosaurs. Also the shells of clams, snails, sea urchins, corals, plants: in fact the remains, traces or indications of life in the past

How do fossils form in 5 ways?

Freezing,

Amber,

Tar seeps,

Casts and molds

Petrification

How a layer of rock containing fossils could be present in a mountain wall that is several thousand feet above sealevel?

The sediments which make up the rocks on the highest mountains were once at the bottom of an ocean, (where the animals lived), and were only pushed up by the action of Plate Tectonics.

What would be the two methods of dating fossils and explain each?

relative and absolute. relative is determining the relative order of past events, without necessarily determining their absolute age. Absolute is the process of determining an approximate computed age in archaeology and geology.

What is any naturally preserved evidence of life?

Fossilised ancient life-forms. There are even fossilsed bacteria from 30 billion years ago.

The sum of all the fossils that exist is called the?

The sum of all the fossils that exist is called that fossil record. It includes fossils from all geologic time periods.

How was fossil fuels created?

Fossils are formed from millions of years ago when sometime during the extinction of the dinosaurs, their skeletons get caught in rocks during Earth's process of Erosion. Fossils of other prehistoric creatures, like the Sea Monsters, were fossilized earlier before and/or after the K-1 Event.

What evidence did scientist use to support evolution theory?

First of all, evolution is a FACT not a theory. You must be referring to Charles Darwin's theory of evolution by means of natural selection. There is no denying the fact that evolution happens, scientists just didn't know exactly how it worked until Darwin suggested one plausible scientific explanation which he called natural selection. Natural selection is simply the change in allele frequencies of an organism which results that organism becoming either better or worse suited to survive in its environment. Being better suited to survive means that the organism is more likely to pass on the beneficial genetic trait to it's offspring.

Rather than asking for evidence which helps prove evolution, try looking for verifiable scientific evidence which disproves it. After all, science is not about making claims and looking for evidence to prove them, but rather generating hypothesis and looking for ways to disprove them.

How might a small fish that dies in a pool become a fossil?

When an organism is buried it is usually in sedementary rock, which is sof and layered. Over time the layers of sedements compact and can soak into the bones of an organism. As the bones are put under extreme pressure the become more like rocks and are thus presserved.

How do fossils help scientists learn what happin in the past?

Scientists can learn from a fossil of animal by its age, diet, and physical characteristics, depending on the condition of the fossil. For example, scientists would not be able to tell of a hominid was a new species or not if a few bones were missing, because of the fact that they could determine different or similar traits than other species of hominid.

What is a palaeoichnologist?

Paleontology is the study of fossils, therefore a paleontologist is a person who studies fossils.

How do remains become petrified fossils?

Petrification occurs when body parts of the organism are replaced by minerals dissolved in ground water. For example, a buried tree may have its wood replaced over millions of years by silica that is dissolved in the surrounding ground water.

What is the definition for cast mold and imprint?

As long as the online class teaches the rules of your state, then an online class would be helpful. If it's just basic information, it could be a waste of time. Be sure you practice driving with your child.

How can you determine the relative age of a rock layer by looking at a cross section?

In the cross section, examine the different layers. The layer at the very bottom will be the oldest, and the one above would be slightly newer, and the one above that even newer, and so on, until the most recent rock layer is found at the top. Therefore, the layer you study will depend on those features. If you know the age of one layer, you will know the relative age of another.

What two types of dating techniques are used in dating fossils?

Body fossils and trace fossils are the principal types of evidence about ancient life, and geochemical evidence has helped to decipher the evolution of life before there were organisms large enough to leave fossils. Estimating the dates of these remains is essential but difficult: sometimes adjacent rock layers allow radiometric dating, which provides absolute dates that are accurate to within 0.5%, but more often paleontologists have to rely on relative dating by solving the "jigsaw puzzles" of biostratigraphy.Classifying ancient organisms is also difficult, as many do not fit well into the Linnean taxonomy that is commonly used for classifying living organisms, and paleontologists more often use cladistics to draw up evolutionary "family trees". The final quarter of the 20th century saw the development of molecular phylogenetics, which investigates how closely organisms are related by measuring how similar the DNA is in their genomes. Molecular phylogenetics has also been used to estimate the dates when species diverged, but there is controversy about the reliability of the molecular clock on which such estimates depend.

What are 3 things can fossil tell us?

It tells you the Age, Place is was from and the Species of the Fossil