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Topic: Fossils and the geological timescale

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Cosmological timeline

Precambrian

Mesoproterozoic

Geologic timescale

Phanerozoic

Milankovitch cycles

Geologic time scale

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Pennsylvanian

Triassic

Cambrian

Age of the Earth

Palaeozoic

Ice age

Timeline of geography, paleontology

	CONK! Encyclopedia: Fossil (Site not responding. Last check: 2007-10-09)
		However, fossils may also consist of the marks left behind by the organism while it was alive, such as the footprint of a dinosaur or reptile.
		Fossilized deposits of heavy carbon (acritarchs) that are also indicative of earlier life (3.8 billion years ago) are currently proposed as the remains of the earliest life on Earth.
		Trace fossils are the remains of trackways, burrows, footprints, eggs and egg-shells, nests and droppings.
	www.conk.com /search/encyclopedia.cgi?q=Fossil (860 words)

	CONK! Encyclopedia: Geologic_timescale (Site not responding. Last check: 2007-10-09)
		The geologic time scale is used by geologists and other scientists to describe the timing and relationships between events that have occurred during the history of the Earth.
		The table of geologic periods presented here is in accordance with the dates and nomenclature proposed by the International Commission on Stratigraphy, and uses the standard color codes of the United States Geologic Survey.
		Because geologic units occurring at the same time but from different parts of the world can often look different and contain different fossils, there are many examples where the same period of time was historically given different names in different locales.
	www.conk.com /search/encyclopedia.cgi?q=Geologic_timescale (1729 words)

	Fossil
		The totality of fossils and their placement in rock formations and sedimentary layers is known as the fossil record.
		Fossilization is a rare occurrence, because natural materials tend to be recycled.
		Other "living fossils" are the nut clams (Ennucula superba), Lingula anatina, an inarticulate brachiopod, the tuatara lizard, the snout-nosed nasikabatrachus sahyadrensis frog, and the horseshoe crab (Limulus polyphemus).
	encyclopedia.codeboy.net /wikipedia/f/fo/fossil.html (541 words)

	Fossil record - Encyclopedia Glossary Meaning Explanation Fossil record (Site not responding. Last check: 2007-10-09)
		These are called fossils, and the totality of these artifacts and their placement in rock formations is referred to as the fossil record.
		The fossil record is one of the primary sources of data relevant to the study of evolution.
		The fossil record and faunal succession form the basis of the science of biostratigraphy or determining the age of rocks based on the fossils they contain.
	www.encyclopedia-glossary.com /en/Fossil-record.html (501 words)

	Wikipedia: Fossil
		Other "living fossils" are the nut clams (Ennucula superba), Lingula anatina, an inarticulate brachiopod, the tuatara, and the horseshoe crab (Limulus polyphemus).
		Fossil is also the tradename of the manufacturer of a popular line of watches and jewelry in the United States.
		FOSSIL is the name of a protocol for serial communications.
	www.factbook.org /wikipedia/en/f/fo/fossil.html (439 words)

	iqexpand.com (Site not responding. Last check: 2007-10-09)
		Fossil footprints made by tetrapod vertebrates are difficult to identify to a particular species of animal, but they can provide us with valuable information, such as the speed, weight, and behavior of the organism which made them.
		The organisms which produce trace fossils are usually not preserved with their markings, and although it may be possible to deduce what the animal was doing at the time, it is usually impossible to determine the maker of the trace conclusively and to assign it to a given species of animal.
		Trace fossils are found in abundance even in rocks from the upper part of the Vendian period, some 550 million years ago and even in Proterozoic (more then 1 billion years ago).
	trace_fossil.iqexpand.com (1614 words)

	Geological Time Scale
		It is important to realize that with new information about subdivision or correlation of relative time, or new measurements of absolute time, the dates applied to the time scale can and do change.
		The numerically calibrated geologic time scale has been continuously refined since approximately the 1930s (e.g., Holmes, 1937), although the amount of change with each revision has become smaller over the decades (see fig.
		The overall duration and relative length of these large geologic intervals is unlikely to change much, but the precise numbers may "wiggle" a bit as a result of new data.
	www.talkorigins.org /faqs/timescale.html (669 words)

	Radiometric Dating and the Geological Time Scale
		The observation that fossils occur in a consistent succession is known as the "principle of faunal (and floral) succession".
		These terms were preceded by decades by other terms for various geologic subdivisions, and although there was subsequent debate over their exact boundaries (e.g., between the Cambrian and Silurian Periods, which was resolved by proposal of the Ordovician Period between them), the historical descriptions and fossil succession would be easily recognizable today.
		By the 1830s, fossil succession had been studied to an increasing degree, such that the broad history of life on Earth was well understood, regardless of the debate over the names applied to portions of it, and where exactly to make the divisions.
	www.talkorigins.org /faqs/dating.html (5229 words)

	Online Encyclopedia and Dictionary - Geologic timescale
		The table and timeline of geologic periods presented here is in accordance with the dates and nomenclature proposed by the International Commission on Stratigraphy.
		When used in formal writing, specific geological and historical periods and events are capitalized.
		The geologic or "deep" time of Earth's past has been organized into various periods according to events which took place in each period.
	fact-archive.com /encyclopedia/Geologic_timescale (426 words)

	Biology: Fossil (Site not responding. Last check: 2007-10-09)
		There are different types of fossils, and fossilization processes: Permineralization This process consists of literally turning an organism into stone.
		Mould, cast and trace fossils If percolating water dissolves the remains of an organism, and thereby leaves a hole, this is called a mould fossil.
		Other "living fossils" are the nut clams (Ennucula superba), Lingula anatina, an inarticulate brachiopod, and the horseshoe crab (Limulus polyphemus).
	www.theparentingsearch.com /Biology/Fossil.shtml (473 words)

	The Geological Time Scale (Site not responding. Last check: 2007-10-09)
		Each of the geological periods is characterised by groups, or suites, of fossils.
		Fossils such as trilobites, graptolites, early fish and ancestral plants belong to this "Era", known as the Paleozoic.
		The last block of geological time is the Cenozoic Era with two geological periods, the Tertiary and the Quaternary.
	www.science.uwaterloo.ca /earth/geoscience/timescal.html (193 words)

	Geologic timescale - Wikipédia
		A timeline of geologic periods in accordance with the dates and nomenclature proposed by the International Commission on Stratigraphy.
		This is largely due to uncertainties in radiometric dating and the problem that deposits suitable for radiometric dating seldom occur exactly at the places in the geologic column where we would most like to have them.
		All dates given are for the end of the interval in question.
	su.wikipedia.org /wiki/Geologic_timescale (259 words)

	Palaeos Timescale: The Geological Time-Scale (Site not responding. Last check: 2007-10-09)
		So the Paleozoic, the era of "ancient life" is characterized by fossils of invertebrates, primitive tetrapods, etc; the Mesozoic or era of "middle life", by fossils of dinosaurs etc, and the Cenozoic or era of "recent life" by mammals and modern plants and invertebrates.
		The Geological time-scale can also be used to define the major stages in the history of life on Earth.
		Most recently, in the blink of an eye geologically speaking, this era saw the rise of Man (Homo erectus, Neanderthal and Cro Magnon) and use of stone tools and fire, the extinction of Megafauna, and civilization and human activities that have transformed the globe, but at a cost of great environmental destruction.
	www.palaeos.com /Timescale (960 words)

	slovenia.ca - Fossils and the geological timescale (Site not responding. Last check: 2007-10-09)
		Catalogue of the Mesozoic Mammalia in the Geological Department of the British Museum and American Mesozoic Mammalia: Memoirs of the Peabody Museum
		An intro to the Geological Timescale and dating th...
		An intro to the Geological Timescale and dating the Earth's past...
	www.slovenia.ca /Fossils-and-the-geological-timescale/reference/fullview/wikipedia/11697 (161 words)

	focil corrected for fossils (Site not responding. Last check: 2007-10-09)
		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 petrifaction or comes to rest in an anoxic environment such as at the bottom of a lake.
		This can be a species known only from fossils until living representatives were discovered, or a single living species with no close relatives, but which is the sole survivor of a once large and widespread group in the fossil record.
		10 to 20% of all internet queries that contain variant spellings to the resources they were really looking for; in this case "fossils" resources.
	www.mistyped.info /focil.htm (687 words)

	Strange Science: Timeline
		The fossils are of multicellular organisms that predated the Cambrian Period, making them the oldest complex fossils yet discovered.
		At least some of the fossils are generally assumed to be related to modern cnidarians like jellyfish and corals.
		Citing the confusion caused by language barriers and jet lag, the paleontologists' American collaborators nickname the fossil "Dave the fuzzy raptor," after a character alluded to in a Cheech and Chong routine.
	www.strangescience.net /timeline.htm (10857 words)

	Geology Entrance (Site not responding. Last check: 2007-10-09)
		Exploring this series of exhibits will take you on a journey through the history of the Earth, with stops at particular points in time to examine the fossil record and stratigraphy.
		The Geology Wing is organized according to the geologic time scale.
		You might wish to start in the Cenozoic Era (65 million years ago to the present) and work back through time, or start with Hadean time (4.5 to 3.8 billion years ago) and journey forward to the present day.
	www.ucmp.berkeley.edu /exhibit/geology.html (198 words)

	Palaeos Geochronology: Geochronology and the Geological Time-Scale (Site not responding. Last check: 2007-10-09)
		Geological Time Scale - a very useful essay, which deals with the distinction between chronostatic and chronometric (relative and absolute geological time).
		These are most commonly obtained via radiometric dating methods performed on appropriate rock types.
		Comprehending Geologic Time - "The classic analogy for illustrating the relative durations of parts of the geologic time scale is the yardstick: Imagine that all the earth's history is laid out on a yardstick...You can use this calculator to create your own metaphor for geologic time.." - an interesting interactive approach
	www.palaeos.com /Geochronology (328 words)

	Fossil Collections of the World - v7.04
		Fossils Galore 220 acres of exposed, Devonian fossil beds
		Fossils of the late Cretaceous formations of Gateway County, SE Alberta by Shane Leuck
		General - fossil identification Tel: 0171 938 9213 / 9280 Fax: 0171 938 9277 Email: Palaeo-enquiries@nhm.ac.uk This service is for general public enquiries, such as fossil identifications.
	www.geocities.com /CapeCanaveral/Lab/8147 (903 words)

	The educational encyclopedia, geology, precambrian, cambrian, ordovician, silurian, devonian, carboniferous, permian, ... (Site not responding. Last check: 2007-10-09)
		Geologic ages of earth history a listing off all the geological time periods from the beginning to present
		Geological time scale an intro to the Geological Timescale and dating the Earth's past, geology, dating, palaeontology, paleontology, evolution, earth history, stratigraphy, time-scale, timescale
		Geologic time scale cenozoic, quaternary, holocene, pleistocene, tertiary, pliocene, miocene, oligocene, eocene, paleocene, mesozoic, cretaceous, jurassic, triassic, paleozoic, permian, pennsylvanian, mississippian, devonian, silurian, ordovician, cambrian, precambrian
	users.telenet.be /educypedia/education/geology.htm (558 words)

	Learn more about Geologic timescale in the online encyclopedia. (Site not responding. Last check: 2007-10-09)
		Learn more about Geologic timescale in the online encyclopedia.
		You are here: Online Encyclopedia > Geologic timescale
		Enter a phrase or search word in the box below.
	www.onlineencyclopedia.org /g/ge/geologic_timescale_1.html (370 words)

	All words on Geologic timescale
		# Paleontologists often refer to faunal stages rather than geologic Periods.
		Category:Geologic timescale ast:Escala de los tiempos xeolóxicos cy:Cyfnodau Daearegol da:Jordens historie de:Geologische Zeitskala eo:Tera Biografio es:Geología histórica et:Geokronoloogiline skaala fr:Échelle des temps géologiques he:לוח הזמנים הגיאולוגי it:Ere geologiche ja:地質時代 nl:Geologisch tijdvak pl:Tabela stratygraficzna ru:Геохронологическая шкала sl:Geološke dobe su:Geologic timescale sv:Geologisk tidsskala uk:Геохронологічна таблиця zh:地质时代
		Despite these efforts, the Project's eBooks and any things, Defects may take the form of incomplete, inaccurate or intellectual property infringement, a defective or damaged codes that damage or cannot be read by your equipment.
	www.allwords.org /ge/geologic-timescale.html (516 words)

	fossils information site (Site not responding. Last check: 2007-10-09)
		This fossils variant index site has been developed to help wayward users find the information they are looking for, no matter how they are mistakenly spelled or mistyped.
		This site will help users find fossils information for the following query variants:
		If you would like to add to the content of this site, or if you are interested in supporting the efforts of misytped.info by placing your product information on these fossils pages, please contact mistype@gmail.com for details.
	www.mistyped.info /fossils.htm (662 words)

	Books about Paleontology and Fossils
		Here is an alphabetical list of books about Paleontology, Fossils, and Dinosaurs, compiled by a science librarian, that are currently available (in print).
		Advancing Research on Living and Fossil Cephalopods : Development and Evolution, Form, Construction, and Function, Taphonomy, Palaeoecology,...
		The Bone Hunters: The Discovery of Miocene Fossils in Gray, Tennessee by Harry Moore
	home.att.net /~azroadie2/paleobook.html (2257 words)

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