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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

What time period is the fossil turritella found in?

The fossil turritella, a type of marine snail, has been found in rocks that date back to the Paleogene period. This period spanned from approximately 66 to 23 million years ago.

Can a snail become a fossil?

Yes, snails can become fossils. When a snail dies, its shell may become buried in sediment and over time, minerals in the sediment can replace the original material of the shell, preserving it as a fossil. Fossilized snail shells can be found in many different types of rock formations.

Does petrified wood opalize?

Yes, petrified wood can opalize. Opalization occurs when silica-rich water seeps into the pores of the wood and replaces the original organic material with opal, resulting in a fossilized wood with opal instead of its original cellular structure. This process can create beautiful opalized specimens.

What is one of the greatest challanges archaeologists face when examining a fossil?

The answer is probably either digging them up, figuring out their age, or figuring out what animal they belong to. If I chose between those 3 answers I would choose 'figuring out what animal they belong to' because digging is hard, but they have tools to help them out, and because for figuring out their age, you just have to use their special program on their computer to analyze, while figuring out the animal is super hard. I have no idea if I am wrong or right. Sorry if I am wrong.

When did the first fossils of a marine reptile found and what is it?

The first fossils of a marine reptile, specifically an ichthyosaur, were found in 1811 in England by Mary Anning. Ichthyosaurs were large, dolphin-like creatures that lived during the Mesozoic Era, approximately 245 to 90 million years ago. These fossils provided important evidence for the existence of extinct reptiles in the oceans.

Can resin preserve?

The answer to this question is: Yes, resin can preserve. Formally known as tree resin, it is a white, thick liquidized substance that was a tree sap. When tree resin solidifies or preserves, it turns into amber, a beautiful golden resin. It has a see through colour (like golden glass), that can be used for making jewellery. In most cases, insects and plants get trapped in the tree resin and stay there forever, even when it hardens! It's like a mammoth in ice. The objects trapped inside can't escape and stay in one piece. It is often found on beaches in Scandinavia.

Is amber renewable or nonrenewable?

Amber is considered nonrenewable because it is formed from the fossilized resin of ancient trees that existed millions of years ago. It takes a long time for resin to fossilize and create amber, and the process does not occur at a rate that can keep up with the demand for amber.

What kinds of fossils might you find in the tapeats sandstone?

Personally all I found was an abundance of trace fossils - worm burrows and rarely some ?cruziana? (?trilobite trails). I believe it is possible to find microfossils called VSMs (vase shaped microfossils) if you take the time and have hand-lenses/microscopes...

What are preserved fossil also called?

Preserved fossils are also referred to as "petrified fossils" or "fossilized remains." These terms describe the process in which organic material is replaced by minerals, preserving the original structure and allowing for their long-term survival.

What is william smith's theory in geology?

William Smith's theory in geology is known as the Principle of Faunal Succession. He proposed that fossils found in rocks can be used to determine the relative age of the rocks. This theory formed the basis for stratigraphy, the study of rock layers and their sequence of formation, and greatly contributed to the development of the geologic time scale.

How many Gospels have been found?

There are almost countless bits of ancient writings that claim to be accounts of Jesus' life, but only 4 Gospels have been canonized, or accepted into the Bible as scripture. These are the accounts of Matthew, Mark, Luke, and John.

Controversy continues over whether or not Gnostic Gospels should be canonized, and these arguments are revived every time a new one is discovered.

Is Sahara some of the earliest human fossils have been found?

No, the Sahara desert is not where some of the earliest human fossils have been found. The earliest human fossils have been discovered in other parts of Africa, such as the Great Rift Valley and South Africa. The Sahara, being a desert, is not conducive to preserving fossils from this early period.

Is paleobotany the study of fossil insects?

No, paleobotany is the study of ancient plants and plant fossils. The study of fossil insects is called paleoentomology.

How are fossil records related to evolution?

The recorded data could be used to see the changes in animal skeletal structure, therefore viewing the evolution change over the years (usually decades or ages).

Hope my hypothesis made sense (:

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What is someone who studies fossils and old bones to find out more about dinosaurs and how they lived?

Someone who studies fossils and old bones to find out more about dinosaurs and how they lived is called a paleontologist. Paleontologists analyze and interpret the remains of ancient organisms, including dinosaur fossils, to understand their anatomy, behavior, and ecosystem. They may also study other aspects of prehistoric life, such as plant fossils and ancient environments.

Why is the seaside a good place to look for fossils?

The seaside is a good place to look for fossils because it often contains exposed layers of sedimentary rock that are rich in fossils. The constant erosion from the waves can also help to uncover new fossils that may have been buried. Additionally, marine environments are known to have a high abundance and diversity of fossilized marine organisms.

How do scientists determine the actual age of Trilobites and all other fossils?

Scientists most frequently use radiometric dating, in its various forms, to figure out the absolute age of fossils. Except for carbon dating (which is only useful for fossils less than ~70,000 years), scientists find the ratio of radioactive atoms, or isotopes, to stable atoms in rock samples. In carbon dating, the sample is taken directly from the fossil.

The use variants of the continuous decay equation (P=e^rt) to figure this out. If you know the initial isotope ratio (which is the same as the atmosphere at the time) and the half-life of the element (the amount of time it takes for half of the amount of the radioactive element to decay), then the age is easy to find out.

Paleontologists, from what I understand, generally use Potassium-Argon dating.

There are other forms of dating that you could look up. Amino acid racemization is based off of the reversal of the chirality (handedness) of organic molecules. John Wells of Cornell University used coral rings to find the number of days in a year when the coral was alive, then used geologically sound calculations to find its age (the Earth's spin is slowing down, so there used to be more days in a year). Molecular clocks are sometimes used as a form of dating, and assume that species have a relatively constant mutation rate over their evolutionary history.

And I'm sure there are plenty more. Geochronology is cool stuff.

Why are fossils of mollusks more abundant than those of the worm phyla?

Fossils of mollusks are more abundant than those of worm phyla primarily due to the hard, durable shells that many mollusks possess, which are more likely to be preserved in the fossil record. In contrast, most worms have soft bodies that decompose rapidly after death, leaving little to no trace. Additionally, mollusks have diverse habitats and a long evolutionary history, increasing their chances of fossilization. The combination of these factors contributes to the greater abundance of mollusk fossils compared to those of worms.

What is the scientist that studies plant and animal life?

Biologists study life; they can be considered to be of two kinds:

zoologists study animals, and botanists study plants.

What find of fossils can tell scientists what dinosaurs ate?

You can tell this tooth is from a carnivore(meat eating dinosaur). If the tooth was very long, it could possibly be from a large carnivore, like Spinosaurus, T-rex,Gigantosaurus,etc. -dino-b, the dinosaur loving expert