What  are 3 different types of fossils? I need some help?
413020
Fossils (from Latin fossus, literally "having been dug up") are the mineralized or otherwise preserved remains or traces (such as footprints) of animals, plants, and other organisms. The totality of fossils and their placement in fossiliferous (fossil-containing) rock formations and sedimentary layers (strata) is known as the fossil record. The study of fossils is called paleontology. Because fossils are by their nature old, the word has also entered the modern vernacular as a derogatory term for an elderly person. Fossils are like coal, oil, etc or u can try these:\n\n\nKind of fossils:\n1 Trace fossils \n2 Microfossils \n3 Resin fossils \n4 Pseudofossils \n5 Living fossils
622709
Because of the continuous weathering of the sedimentary rock formations over the millions of years. Fossils are rare to begin with and many have been lost. We are still continuing to find additional evidence all the time, though.
825191
1. F-Brachiopod \n2. A-Gastropod \n3. G-Cephalopod\n4. E-Bryozoan (I love bryozoans! Particularly phylactolaemata!)\n5. D-Crinoid \n6. B-Horn Coral \n7. C-Trilobite (These too!)
77663
Adapted from Dinosaurs: The Very Latest Information and Hands-On Activities From the Museum of the Rockies, by Liza Charlesworth and Bonnie Sachatello-Sawyer. A Scholastic Professional Book.\n\nWay back in 1676, Robert Plot, the curator of an English museum, described and drew a thigh bone that he believed belonged to a giant man. Although that fossil disappeared without a trace, the surviving illustration suggests that it may well have been part of a "Megalosaurus." Later, in 1822, large teeth discovered in England by Mary Ann Mantell and her husband, Gideon, were thought to be the remains of a huge and extinct iguana. It wasn't until 1841 that British scientist Richard Owen came to realize that such fossils were distinct from the teeth or bones of any living creature. The ancient animals were so different, in fact, that they deserved their own name. So Owen dubbed the group "Dinosauria," which means "terrible lizards."\n\nAcross the ocean in North America, dinosaur tracks were studied in the Connecticut Valley, beginning in the 1830's. They were believed to belong to enormous ravens, freed from Noah's Ark after the Great Flood. At that time, paleontology was long on deduction and short on evidence. This was remedied when two wealthy and competitive American scientists, Othniel Marsh and Edward Cope, raced to excavate fossils in the Rocky Mountain region. In the late 1800's, their separate teams, armed against Native Americans and each other, dug up tons of bones from several sites. All in all, Marsh and Cope's rivalry — known as the Bone Wars — uncovered 136 new species. And their respective fossil displays generated excitement for dinosaurs the world over.\n\nIn the 1900's, enthusiasm for dinosaurs grew steadily, attracting the attention of the scientific community. Institutions such as the Carnegie Museum of Natural History and the American Museum of Natural History assembled dig teams, which uncovered many rich bone beds in North America (as did their counterparts overseas). New sites in Utah revealed several different species, including "Camarasaurus," "Apatosaurus," and "Stegosaurus;" "Tyrannosaurus rex" remains were found in Montana and baby Coelosaurs in New Mexico.\n\nIn recent decades, dinosaur research continues, but the emphasis has shifted from finding and classifying these animals to analyzing and reconstructing their lives and habitats. In the late 1960's, Robert Bakker proposed that these ancient creatures may well have been as agile and energetic as warm-blooded animals. In the mid 1970's, Peter Dodson, along with James Farlow, hypothesized that they used their horns to attract the attention of females, as well as for fighting. And in the late 1970's, Jack Horner made history by identifying some of the first dinosaurs nests and eggs in North America. These important "Maiasaura" fossils helped to determine that some species nested in colonies and cared for their young.\n\nIn the past few years, several paleontologists, including Ken Carpenter, Phil Currie, and William Coombs, have identified juvenile dinosaurs that were previously thought to be adults; and David Weishampel has theorized that some dinosaurs probably used their crests and nasal passages to create sound. Each day, scientists working all over the world, in the field and in research labs, help to redefine the meaning of the world "dinosaur."
1016560
Fossils (from Latin fossus, literally "having been dug up") are the mineralized or otherwise preserved remains or traces (such as footprints) of animals, plants, and other organisms. The totality of fossils and their placement in fossiliferous (fossil-containing) rock formations and sedimentary layers (strata) is known as the fossil record. The study of fossils is called paleontology.\n\n \nFossil fish of the genus KnightiaFossilization is actually a rare occurrence because most components of formerly-living things tend to decompose relatively quickly following death. In order for an organism to be fossilized, the remains normally need to be covered by sediment as soon as possible. However there are exceptions to this, such as if an organism becomes frozen, desiccated, or comes to rest in an anoxic (oxygen-free) environment such as at the bottom of a lake. There are several different types of fossils and fossilization processes.\n\nFossils usually consist of traces of the remains of the organism itself. However, fossils may also consist of the marks left behind by the organism while it was alive, such as the footprint or feces of a dinosaur or reptile. These types of fossil are called trace fossils (or ichnofossils) as opposed to body fossils. Finally, past life leaves some markers that cannot be seen but can be detected in the form of chemical signals; these are known as chemical fossils or biomarkers.\n\nFossil sites with exceptional preservation are known as Lagerstätten. These formations may have resulted from carcass burial in an anoxic environment with minimal bacteria, thus delaying decomposition. Lagerstätten span geological time from the Cambrian. Examples are the Cambrian Maotianshan shales and Burgess Shale, the Devonian Hunsrück Slates, the Jurassic Solnhofen limestone, and the Carboniferous Mazon Creek localities.\n\nThe oldest known structured fossils are most likely stromatolites. Now understood to be formed by the entrapment of sediment by mucous-like sheets of cyanobacteria[1], the oldest of these formations dates from 3.5 billion years ago. Even older deposits (3.8 billion years old) of heavy carbon that are indicative of even earlier life are currently proposed as the remains of the earliest known life on Earth.
165331
"The Tertiary covers roughly the time span between the demise of the dinosaurs and beginning of the most recent ice age. At the beginning of the period mammal replaced reptiles as the dominant animals. Each epoch of the Tertiary was marked by striking developments in mammalian life. The earliest recognizable hominoid relatives of humans, Proconsul and Australopithecus, appeared. Modern types of birds, reptiles, amphibians, fish, and invertebrates either were already numerous at the beginning of the period or appeared early in its history. Modern families of flowering plants evolved. Marine invertebrates and non-mammal marine vertebrates experienced only modest evolution."
344801
It would really help if you knew where he had found it, fossil assemblages vary from country to country, and even locally. If you know where it is from try contacting the local museum or geology department of the university in that area.
607690
Sedimentary rock is one of the three main rock groups (along with igneous and metamorphic rocks) and is formed in three main ways—by the deposition of the weathered remains of other rocks (known as 'clastic' sedimentary rocks); by the deposition of the results of biogenic activity; and by precipitation from solution. Sedimentary rocks include common types such as chalk, limestone, sandstone, clay and shale. Sedimentary rocks cover 75% of the Earth's surface. Four basic processes are involved in the formation of a clastic sedimentary rock: weathering (erosion), transportation, deposition and compaction.\n\nSedimentary rocks are formed from overburden pressure as particles of sediment are deposited out of air, ice, or water flows carrying the particles in suspension. As sediment deposition builds up, the overburden (or lithostatic) pressure squeezes the sediment into layered solids in a process known as lithification ("rock formation") and the original connate fluids are expelled. The term diagenesis is used to describe all the chemical, physical, and biological changes undergone by a sediment after its initial deposition and during and after its lithification, exclusive of surface weathering.\n\nSedimentary rocks contain important information about the history of the Earth. They contain fossils, the preserved remains of ancient plants and animals. The composition of sediments provides us with clues as to the original rock. Differences between successive layers indicate changes to the environment which have occurred over time. Sedimentary rocks can contain fossils because, unlike most igneous and metamorphic rocks, they form at temperatures and pressures that do not destroy fossil remnants.\n\nThe sedimentary rock cover of the continents of the Earth's crust is extensive, but the total contribution of sedimentary rocks is estimated to be only five percent of the total. As such, the sedimentary sequences we see represent only a thin veneer over a crust consisting mainly of igneous and metamorphic rocks. These rocks are very useful for building and architecture.\n\nYou can get more information at following link\n\nhttp://en.wikipedia.org/wiki/Sedimentary_rock
45660
Three types of rocks: igneous (formed by volcanic activity, like obsidian and pummice), metamorphic (formed by heat and pressure, like marble and quartzite) and sedementary (formed by accumulated depositing of loose material, packed hard into a rock, like sandstone and limestone).
861869
The major lines of evidence are:\n1) the paleoenvironments the species lived in, as evidenced by the sedimentary rocks and other fossils\n2) analogy with related species\n3) functional morphology\n4) taphonomy and trackways\n\nThings you might look up are ammonites, trilobites etc
1148811
Man, read up on decomposition, then read up on the conditions needed for fossilization/petrifaction.\n\nIf you have some time left over, either make a study of grammar, or learn to read aloud what you write to see if it makes any kind of sense.\n\nHomo sapiens shows up in the fossil record one hundred thousand years ago, not millions of years, you're off by an order of magnitude.
133519
The VERY BEST online guide to trilobites is here:\nhttp://www.trilobites.info/index.html\nHe even has a long FAQ, as well as lots of photos and diagrams. \n\nThe Australian Museum has a good write-up describing them:\nhttp://www.austmus.gov.au/palaeontology/research/trilobites02.htm\n\nHere is a good set of photos of specimens:\nhttp://www.yale.edu/ypmip/\n\nHere is another set of 46 photos of specimens:\nhttp://www.paleoportal.org/fossil_gallery/search.php
80631
I am not sure I understand your question so I will answer it two ways. Fossils are found in sedimentary rock because they originate as living organisms, and their remains will be carried away or buried by the same processes that create sedimentary rocks. Windblown sand will build and move sand dunes, moving water will transport sediment, gravity will cause piles of rock to build up at the base of mountains, and all sorts of sediment and remains will settle to the bottom of the sea. All are possible sedimentary rocks. Since igneous rocks were once melted, and metamorphic rocks undergo chemical changes from heat and pressure, it is not possible to find fossils in these rocks. \n\nMy second answer is how sedimentary rocks (and fossils) end up in layers. Many of the processes that move the sediment, like wind, flowing water, and some gravity driven events, only happen periodically. Storms create windstorms, heavy rainfall causes rivers to flood, and often things like heavy rain will trigger a sudden landslide. These events are distinct, and each one will create a new layer of deposits somewhere. Another way these layers are created is that rivers will often change course due to changes in flow. This will cause areas that have accumulated sand to now be covered by silt or shale when the river overflows its new channel. As the river builds a delta outward into the ocean, the part of the delta where the river first meets the ocean will deposit sand, while clays and silt are carried further out into the ocean. This will create layers of shale that are later covered by sand. Within each of these layers fossils of any organism that died while those were being deposited will be trapped, and the fossils in turn can be used to calculate the age of those deposits. Every layer of a sedimentary rock represents some event in the history of the earth. \n\nIn limestone, which has a very high content of fossils, the reason for this is that the limestone is built by the accumulation of the body parts left behind by those organisms. The fossils in limestone may not be transported at all, and instead may be in same place the organism lived (in relation to the immediate rock). Layers in limestone are more often created by rising and falling of sea level. As sea level raises many organisms that end up as limestone will die off. They will then be covered by a layer of sediment falling from the overlying water, and if sea level drops again, new organisms will begin to colonize the shallower water and build another layer of limestone.
1187566
Reptiles\nAmphibians\n"mammal-like reptiles" (reptiles who'se outer jaw bones had migrated to become ear bones)\nMammals (in the final dinosaur age, the Jurassic)\nInsects\nArachnids
573949
try wikipedia, search fossils
495022
Examining fossils- they tell us a lot about once living things like appearance & behavior. Fossils include everything from dinosaur bones & eggs to worm burrows, fossilized tracks, fossilized poop, etc.\n\nStratigraphy or the laying down of sediments over time. This tells us a lot about when & where water occurred. Ripple marks & dunes created by winds. Escarpments carved by the ocean.\n\nGeochemistry involves looking at different isotopes to tell what things were like once.
215556
Archaeopteryx\nBrontotherium\nDinosaurs\nDire Wolves\nDodos \nIchthyosaur\n Mammoths\nMastodons\nSaber-Toothed Tigers\nThylacines\nTrilobites