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In India, where children enter Class 4 at the ages 9 to 10 it is called Lower Primary, it is known as the fourth grade. 5-7 standard categories as Upper Primary (UP). Lower Primary gives the basic education necessary for a kid and when they get to the UP section, advanced knowledge will be provided via lessons or modules. [citation needed]
This accounts for the detail found in permineralization. Silicification reveals information about what type of environment the organism was likely to have lived in. Most fossils that have been silicified are bacteria, algae, [3] and other plant life. Silicification is the most common type of permineralization. [4]
[12] [13] These crocodiles likely shared Oregon's Jurassic seaways with ichthyosaurs. [4] Plant fossils from Oregon's Jurassic period show that the terrestrial environment became warmer and wetter, creating swampy conditions. These fossils, from the Coon Hollow Formation and others of similar age, include ferns, quillworts, cycads, and conifers ...
Fossils of organisms' bodies are usually the most informative type of evidence. The most common types are wood, bones, and shells. [57] Fossilisation is a rare event, and most fossils are destroyed by erosion or metamorphism before they can be observed. Hence the fossil record is very incomplete, increasingly so further back in time.
The rivalry between Othniel Charles Marsh (left) and Edward Drinker Cope (right) sparked the Bone Wars.. The Bone Wars, also known as the Great Dinosaur Rush, [1] was a period of intense and ruthlessly competitive fossil hunting and discovery during the Gilded Age of American history, marked by a heated rivalry between Edward Drinker Cope (of the Academy of Natural Sciences of Philadelphia ...
Fossil collecting – Collecting fossils to study, collect or sell; Fossil park; Jurassic Coast – World Heritage Site on the coast of southern England; Lagerstätte – Sedimentary deposit with well-preserved extraordinary fossils; Lists of dinosaur-bearing stratigraphic units; List of fossil parks around the world; List of fossil parks in India
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