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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
I found the first triceratops fossil?
Fossilized remains are commonly found throughout the world. If you suspect you have found the bone of an animal, you should probably notify your local college and see if an archaeologist could take a look at it. If the fossil is part of a larger skeleton, the site could be excavated further by professionals.
When where and by whom was the Smilodon fossil discovered?
Smilodon fossils were first discovered in South America in the 19th century by Danish paleontologist Peter Wilhelm Lund. The most famous discoveries of Smilodon fossils were made in the La Brea Tar Pits in Los Angeles, California. These fossils date back to the Pleistocene epoch.
Because Igneous Rocks was made from magma or lava and Sedimentary Rocks are made found underwater where a bunch of rubbish is lying around and they add them together and Metamorphic Rocks were either from Igneous or Sedimentary Rocks so they could also be filled with fossils.
When was schizophrenia first identified?
Schizophrenia was first identified as a mental illness in the early 20th century by psychiatrist Emil Kraepelin based on his observations of patients exhibiting symptoms such as hallucinations, delusions, and disorganized thinking.
Where have velociraptor fossils been found?
Velociraptor fossils have been found in the Djadochta Formation in Mongolia and the Bayan Mandahu Formation in north-central China. Velociraptor was first discovered in 1923 by Peter Kaisen while he was on an expedition with the American Museum of Natural History.
Why do you tar and sand a road?
Tar and sand are applied to a road to create a seal coat that helps protect the road surface from moisture, UV rays, and traffic wear. The tar acts as a binder to hold the sand in place and improve traction for vehicles. This treatment helps extend the life of the road and improve safety for drivers.
Fossils (from Latinfossus, literally "having been dug up") are the preserved remains or Trace_fossilof animals (also known as zoolites), plants, and other organisms from the remote past. The totality of fossils, both discovered and undiscovered, and their placement in fossiliferous (fossil-containing) Rock_(geology) formations and Sedimentary_rocklayers (Stratum) is known as the fossil record. The study of fossils across Geologic_time_scale, how they were formed, and the Evolutionrelationships between Taxon(Phylogenetics) are some of the most important functions of the science of Paleontology. Such a preserved specimen is called a "fossil" if it is older than some minimum age, most often the arbitrary date of 10,000 years ago.Answers.com
Hence, fossils range in age from the youngest at the start of the HoloceneEpoch to the oldest from the ArcheanEon several 1000000000_(number) years old. The observations that certain fossils were associated with certain rock Stratumled early geologists to recognize a geological timescale in the 19th century. The development of Radiometric_datingtechniques in the early 20th century allowed geologists to determine the numerical or "absolute" age of the various strata and thereby the included fossils.
Like Extant_taxonorganisms, fossils vary in size from Microscope, such as single bacterial cellsAnswers.comonly one Micrometrein diameter, to gigantic, such as Dinosaurand trees many meters long and weighing many tons. A fossil normally preserves only a portion of the deceased organism, usually that portion that was partially Mineralizationduring life, such as the Boneand teeth of Vertebrate, or the Chitinor CalcareousExoskeletonof Invertebrate. Preservation of soft tissues is rare in the fossil record. Fossils may also consist of the marks left behind by the organism while it was alive, such as the footprint or Feces(Coprolite) of a Reptile. These types of fossil are called Trace_fossil(or ichnofossils), as opposed to body fossils. Finally, Evolutionary_history_of_lifeleaves some markers that cannot be seen but can be detected in the form of Biochemistrysignals; these are known as chemofossils or biomarkers.
What is the age of the oldest cyanobacteria fossil found?
The oldest cyanobacteria fossil found is about 3.5 billion years old, known as the Apex chert fossils from Australia. These fossils provide evidence of the early existence of cyanobacteria, which played a significant role in shaping the Earth's atmosphere and environment.
What natural event preserved the village of ozette?
The mudslide that buried the village of Ozette in the 1500s is what preserved it. The mud acted as a seal, keeping the artifacts and structures intact from the elements for centuries.
Why is radio carbon dating used for frozen fossils?
Radiocarbon dating is used for frozen fossils because it can accurately determine the age of organic materials up to about 50,000 years old. This method relies on the decay of carbon-14 isotopes in organic materials, which stops when an organism dies. By measuring the remaining carbon-14 levels in a fossil, scientists can calculate its age even if it is frozen.
What evidence do you have that the diprotodon existed?
A great deal of fossil evidence exists to show that the Diprotodon existed. Diprotodon (giant wombat) fossils are found throughout outback Australia. They have most commonly been found in the Darling Downs in southern Queensland; inland areas of New South Wales such as the Wellington Caves, Tambar Springs and Cuddie Springs; Bacchus Marsh in southern Victoria; and eastern parts of South Australia such as the Naracoorte Caves and Burra, and on King Island. Hundreds have been found in Lake Callabonna in South Australia, from animals apparently trapped in mud. There is also evidence that Diprotodons co-existed with the Australian Aborigines.
Where would you most likely find fossil bearing rocks?
The most likely place would be at a limestone or dolostone rock quarry. However, fossils can be found in an abundance of places. Fossils are common in landscaping gravels, or anywhere mixed rocks are found.
Dicyclomine is used to treat certain stomach/intestinal problems such as irritable bowel syndrome (IBS) or spastic bowel. It helps to relieve symptoms such as stomach pain, cramping, and bloating. Dicyclomine works by relaxing the muscles in the stomach and intestines.
Which statement provides evidence that evolution is still occurring at the present time?
There is no reason to think the same forces that shaped species in ages past are not still at operation. These forces are genetic drift and natural selection. And we find them still in operation, gradually modifying the phenotype of species. US sparrows, descended from European sparrows, have accumulated slight differences over just a few centuries. Drug resistance in various pathogenic bacteria is another example.
Replication is inexact--every individual is slightly different from its parents, and these changes accumulate.
Are there dinosaur fossils in Iceland?
No, Iceland is a young country, the oldest rocks there are only 20-30 million years old and since the dinosaurs became extinct about 65 million years ago, there is no possibility of any in Iceland.
When is bleached paperboard used?
Bleached paperboard is commonly used for packaging applications where a white, clean, and bright appearance is desired, such as in high-end food packaging, cosmetics packaging, pharmaceutical packaging, and specialty product packaging. Its ability to showcase vibrant colors and graphics makes it a popular choice for products that require an attractive and visually appealing presentation.
What is preprinted linerboard used for?
Preprinted linerboard is used in packaging to provide a decorative finish, branding, or messaging on corrugated boxes before they are assembled. It helps enhance the visual appeal of the packaging materials and can serve as a marketing tool to communicate product information or brand identity.
Paperboard is quite commonly used for packaging food and beverage products including juices, milk, and cereal products. Paperboard packaging comes in several grades. Solid bleached sulfate (SBS) paperboard contains at least 80% virgin bleached wood pulp.
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Does fossils form from soft parts or hard parts?
Fossils can form from both soft parts and hard parts of organisms. Soft parts can become fossilized through processes like carbonization or preservation in amber, while hard parts like bones or shells can undergo mineralization or replacement to become fossils.
What process will most likely chemical weather on iron-rich rocks?
The most likely process that will chemically weather iron-rich rocks is oxidation. When iron is exposed to oxygen and water, it can react to form iron oxide, commonly known as rust. This process weakens the rock structure and can eventually lead to the breakdown of the rock into smaller fragments.
Why are fossils preserved in sedimentary rocks not in igneous rocks?
Fossils are preserved in sedimentary rocks because the layers of sediment act as a protective cover that can entomb and preserve organisms. In contrast, igneous rocks form from molten rock, which does not provide the same conditions for fossil preservation due to high heat and pressure. Additionally, the process of fossilization is less likely to occur in igneous rocks compared to sedimentary rocks.
Why plants fossils found in amber are not usually found in volcanics rocks?
Plants found in amber are typically preserved in resin from trees, which is a process that occurs in forests. Volcanic rocks are formed from magma and do not provide the same type of environment conducive to preserving plant material. Additionally, the high temperatures and pressures associated with volcanic activity would likely destroy any plant material before it could be preserved.
How do insects or small animals become preserved in amber?
Amber is sap from a tree that has hardened and when an insect gets stuck in it, the sap covers it completely over a long period of time. It preserves the insect because there is nothing in the amber that acts as a decomposer.
How are rocks constantly bring formed and destroyed?
Metamorphic rock is very tough, but it can be slowly destroyed by various erosive processes; the weather, the lichen, etc. It can be destroyed faster by miners. Metamorphic rock is recycled in nature by weathering and erosion, or by melting. Both processes can lead to the formation of new rock types.
What kind of rock do fossils form?
Sedimentary rock, its rarely found in metamorphic and never found in igneous rock because it would make the fossil of the animal worped and changed. It wouldn't be with the original form on metamorphic and igneous would destroy the whole fossil.
