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Topic: Triassic Period

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Triassic

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	Tectonics of the Triassic Period
		The Triassic period was a transition from the Paleozoic Era to the Mesozoic.
		The climate of the Triassic era was influenced by Pangaea, its centralized position stradling the equator, and the geologic activity associated with its breakup.
		The Triassic Period (245-208mya) - Geography, Climate and Tectonics.
	www.ucmp.berkeley.edu /mesozoic/triassic/triassictect.html (716 words)

	Triassic - Wikipedia, the free encyclopedia
		As the first period of the Mesozoic Era, the Triassic follows the Permian and is followed by the Jurassic.
		The extinction event that closed the Triassic period has recently been more accurately dated, but as with most older geologic periods, the rock beds that define the start and end are well identified, but the exact dates of the start and end of the period are uncertain by a few million years.
		The Triassic period ended with a mass extinction, which was particularly severe in the oceans; the conodonts disappeared, and all the marine reptiles except ichthyosaurs and plesiosaurs.
	en.wikipedia.org /wiki/Triassic (1713 words)

	Triassic System - LoveToKnow 1911 (Site not responding. Last check: 2007-10-17)
		Triassic Period Hypothetical distribution of Land and Sea f -4 The original Trias of the " Germanic " area (including Great Britain) must be understood as a special local expression of the continental Trias, while the thoroughly marine type represents the normal aspect of sedimentation.
		The records of the terrestrial and lagoonal conditions during this period are to be found in the coarse conglomerates, red and mottled sandstones, marls and clays with their accompanying beds of dolomite and limestone, and layers of gypsum, anhydrite, rock-salt and coal.
		The reptiles of the Triassic deposits, unlike the amphibians, which are Permian in character, show a closer relationship with Jurassic forms; one of the most interesting facts in the life-history of the group is the development during this period of sea-going forms such as at a later geological period played so prominent a part.
	www.1911encyclopedia.org /Triassic_System (2309 words)

	Triassic period - HighBeam Encyclopedia (Site not responding. Last check: 2007-10-17)
		Throughout the Triassic, E North America, as a result of the mountain-building episode that formed the Appalachians in the late Paleozoic era, was elevated above sea level.
		The end of the Triassic in North America was marked by extensive faulting and tilting of the Newark series, called the Palisade disturbance, and by the emergence of W North America.
		The dominant animals of the Triassic were the reptiles; although the Triassic reptiles were less specialized than those of the Jurassic, there were already a number of types of dinosaurs, pterosaurs, and marine reptiles.
	www.encyclopedia.com /doc/1E1-triassic.html (643 words)

	Triassic - Biocrawler (Site not responding. Last check: 2007-10-17)
		The characteristic sediments of the Triassic are red sandstones and evaporites, which suggest a warm dry climate.
		The supercontinent Pangaea was rifting during the Triassic but had not yet separated; the first marine sediments in the earliest rift, which separated New Jersey from Morocco, are Late Triassic in origin.
		The Triassic was named in 1834 by Friedrich Von Alberti from the three distinct layers—redbeds, capped by chalk, followed by fl shales— that are found throughout Germany and Northwest Europe, called the 'Trias'.
	www.biocrawler.com /encyclopedia/Triassic (1514 words)

	TRIASSIC PERIOD
		The Triassic was a time of major climatic change, with at least two major extinctions as some species flourished and others died out.
		By the end of the Triassic the large sauropods had probably evolved from plateosaurid ancestors.
		This was the beginning of the age of the dinosaurs that would extend for 140-150 million years until the end of the Cretaceous period 65 million years ago.
	www.dinoruss.com /de_4/5c5cae8.htm (409 words)

	The Triassic Period (Site not responding. Last check: 2007-10-17)
		The Triassic also follows the largest extinction event in the history of life, and so is a time when the survivors of that event spread and recolonized.
		The organisms of the Triassic can be considered to belong to one of three groups: holdovers from the Permo-Triassic extinction, new groups which flourished briefly, and new groups which went on to dominate the Mesozoic world.
		The Triassic Period is part of the Mesozoic Era.
	www.ucmp.berkeley.edu /mesozoic/triassic/triassic.html (196 words)

	The Triassic Period --
		The Triassic Period was born 250 million years ago (mya) from the violent close of the Permian Period.
		The Triassic Period came to its own violent end about 200 mya as great convective forces deep within the earth split apart the northwestern region of Pangea, and set North America adrift from what would become the African continent.
		With the death of Pangea and the Triassic, the Jurassic was born.
	www.triassiclegacy.org /The_Triassic.html (367 words)

	Highbeam Encyclopedia - Search Results for Triassic
		Triassic period TRIASSIC PERIOD [Triassic period], first period of the Mesozoic era of geologic time (see Geologic Timescale, table) from 205 to 250 million years ago.
		Throughout the Triassic, E North America, as a result of the mountain-building episode that formed the Appalachians in the late Paleozoic era,
		Plesiosaurus PLESIOSAURUS [Plesiosaurus], genus of extinct predatory marine reptiles that arose in the Triassic period of geologic time and continued into the Jurassic and Cretaceous periods.
	www.encyclopedia.com /SearchResults.aspx?Q=Triassic (599 words)

	The Triassic Period of the Mesozoic Era
		The Triassic also follows the largest extinction event in the history of life, and so is a time when the survivors of that event spread and recolonized.
		The organisms of the Triassic can be considered to belong to one of three groups: holdovers from the Permo-Triassic extinction, new groups which flourished briefly, and new groups which went on to dominate the Mesozoic world.
		In the Lower Triassic the sea extended east to Idaho, Colorado, and Wyoming; during the Middle Triassic the sea submerged British Columbia; and during the Upper Triassic the sea extended into Alaska.
	www.science501.com /PTTriassic.html (876 words)

	Ecology of the Triassic
		There is evidence that during the Triassic the cynodonts evolved endothermy, from nerves and blood vessels serving whiskers on the animal snouts.
		Through the Triassic period the mammal like reptiles, continued to diversify, though by the Mid to Late Triassic the Rhynchosaurs group had risen to equal dominance, the Thecodonts had also risen in importance (see figure 2).
		One of the strangest animals of the Triassic seas was the Tanystropheus an early ruling reptile known from fossil localities in Germany, Switzerland and Israel.
	palaeo.gly.bris.ac.uk /Palaeofiles/Triassic/ecoloftri.htm (1747 words)

	The Triassic Period: Reptiles Inherit The Earth
		The Triassic Period began around 248 million years ago, after the mass extinction that brought an end to the Permian Period.
		At the beginning of the Triassic Period, the land was all together in one supercontinent, Pangea.
		During the early part of the Triassic Period, when Pangea was still one huge supercontinent, the reptiles were more adaptable to the hot dry lands.
	www.fossils-facts-and-finds.com /triassic_period.html (1001 words)

	Palaeos Mesozoic : Triassic : The Triassic Period
		The Triassic Period is the first geological period of the Mesozoic era or "Age of Reptiles".
		The Triassic saw the single vast supercontinent of Pangea straddling the equator.
		Bivalves, ammonoids and brachiopods all recovered from the Permian extinction to dominate the Triassic.
	www.palaeos.com /Mesozoic/Triassic/Triassic.htm (1167 words)

	ENGLISH NATURE - Special Sites
		Triassic rocks are widespread throughout England outcropping either side of the Pennines, the Midlands, Gloucestershire, Somerset and east Devon.
		Triassic river deposits occur along the south coast between Exmouth and Sidmouth.
		The rocks of this period are characteristically red in colour due to the oxidation of iron-rich minerals in the sediments under the arid conditions.
	www.english-nature.org.uk /special/geological/sites/stratiperiod6.asp (339 words)

	The Mesozoic Era.
		It is the closing period of the Mesozoic era, and is also the longest period of that era.
		During the Triassic period reptiles flourished with new groups appearing including crocodiles, turtles, Phytosaurs, such as Rutiodon, the mollusc-eating Placodonts, such as Placodus, Pterosaurs, Plesiosaurs, Ichthyosaurs, Nothosaurs, such as Nothosaurus, and the Protorosaurs, such as the the long necked Tanystropheus.
		The Triassic is named after the threefold series of strata from this period, the Bunter, Muschelkalk and Rhaetic, which occur in southern Germany.
	www.bobainsworth.com /fossil/mesozoic.htm (746 words)

	Triassic Period
		The period when the first dinosaurs appeared was called the “Triassic Period.” At that time, the Earth was much different than it is today.
		Grass never grew during the Triassic and the dinosaurs got bigger and bigger as a result of having little competition from any other forms of life on the land.
		One of the most significant developments to occur during the latter part of the Triassic was that some creatures took to the air.
	www.tooter4kids.com /DinosaurIndex/triassic_period.htm (400 words)

	Triassic Dinosaurs - ZoomDinosaurs.com
		During the early Triassic, corals appeared and ammonites recovered from the Permian extinction.
		Leptocycas was a cycad, a primitive seed plant from the late Triassic period.
		The Triassic period was named in 1834 by the German geologist Friedrich August Von Alberti (1795-1878) (it was originally named the "Trias").
	www.enchantedlearning.com /subjects/dinosaurs/mesozoic/Triassic.html (686 words)

	iKnowthat.com - Desert Daytime Discover More Story
		The Triassic period occurred during the first years of the Age of Dinosaurs, the Mesozoic Era.
		Near the end of the Triassic period, the Earth was beginning to experience volcanic activity.
		The world’s climate during the Triassic period was still and arid.
	www.iknowthat.com /StickerBookApp/sbr/Dinosaurs/Backgrounds/DiscoverMore/Desert_Daytime.htm (394 words)

	Permian - Triassic - GCR block
		The upper boundary of the Triassic System is defined by the base of the Jurassic System, which is internationally recognized as being at the base of the planorbis subzone of the planorbis Ammonite Zone of the Hettangian Stage.
		Formations recognized in Triassic sequences in Britain constitute three major lithostratigraphical units, the Sherwood Sandstone Group, the Mercia Mudstone Group (largely equivalent to the old ‘Keuper Marl’), and the Penarth Group that are applicable throughout most of the British Isles.
		The magnitude of the crisis is indicated by the recovery phase in the Triassic Period.
	www.jncc.gov.uk /earthheritage/gcrdb/GCRblock.asp?block=70 (1969 words)

	Triassic (Site not responding. Last check: 2007-10-17)
		There were areas of great tectonic activity during this period due to the break-up of Pangaea.
		There was deposition of Triassic evaporites, red bed and desert dunes in the low and middle latitudes of North and South America, Europe and Africa, indicating a dry climate.
		Hardly anything of significance occurred during this period except the continuation of the Lykin Formation during the early portion.
	www.caveofthewinds.com /triassic.html (172 words)

	Lecture 9 - Triassic: Moenkopi, Karroo, Ischigualasto
		The Triassic was critical for Terrestrial life because all of the living dominant groups of tetrapods evolved by its end.
		The Middle Triassic basically continues the pattern seen in the early part of the period, except that the terrestrial record is not nearly as good.
		Since the Triassic, that part of northern Africa drifted north with the rest of the plate and formed the Alps, in which the rocks now outcrop in the Lake Lugano region of Italy and Switzerland.
	rainbow.ldeo.columbia.edu /courses/v1001/9.html (2271 words)

	Triassic Period: World of Earth Science
		The Triassic Period, first of the Mesozoic Era's three periods, began about 240 million years ago and lasted for approximately 40 million years.
		In the late Triassic, the plates comprising Pangaea began to break up, and continental drift has subsequently distributed the red beds all over the world (North America, South Africa, Europe, Brazil).
		It was not until the Jurassic Period that the most familiar species (Tyrannosaurus rex, Brontosaurus, etc.) were to evolve.
	science.enotes.com /earth-science/triassic-period (392 words)

	Evolution: Change: Deep Time (Site not responding. Last check: 2007-10-17)
		The Triassic period, which opens the Mesozoic era, follows a near-complete extinction of life.
		The Triassic is a critical period for the land vertebrates.
		During the period, mammal-like reptiles evolve traits that are closer and closer to those of mammals.
	www.pbs.org /wgbh/evolution/change/deeptime/mesozo.html (957 words)

	HAKIM & MURTADHA DINOSAURS HOMEPAGE
		The Eoraptors and Herrerasaurus were believed to be the earliest of the dinosaur species that existed sometime in the middle of the Triassic period (about 225 MYA).
		One of the tiniest dinosaur of Triassic age was the Pisannosaurus.
		Traces of mammals were also found in the Triassic period, but most of the mammals were small, the size of a mice.
	members.tripod.com /~pre_historic/triassic.htm (512 words)

	Triassic Period
		The Triassic period fall within the Cenozoic era, this was about 220 million ago.
		Before this period, the world was very unusual because Scientist believes that about 20 million years before the appearance of the first dinosaurs, the world when through the biggest extinction that ever occurred.
		In the Late Triassic that the world was still recovering and there was not the usual varieties of normal life found on earth.
	www.dinopark.org /TriassicPeriod.html (236 words)

	Triassic period — FactMonster.com
		Throughout the Triassic, E North America, as a result of the mountain-building episode that formed the Appalachians in the late
		The dominant animals of the Triassic were the reptiles; although the Triassic reptiles were less specialized than those of the Jurassic, there were already a number of types of
		Table of Geological Periods - It is generally assumed that planets are formed by the accretion of gas and dust in a cosmic cloud,...
	www.factmonster.com /ce6/sci/A0849392.html (565 words)

	Triassic Period (Site not responding. Last check: 2007-10-17)
		At the beginning of the Triassic period, Nova Scotia was located near the equator near the middle of a single supercontinent called Pangea, or "One Earth." Wedged between present-day Africa and North America, it was far from the moderating influence of the ocean.
		From the Permian Period to the middle of the Triassic Period, Nova Scotia was experiencing the erosional effects of a hot, arid climate.
		Early to Middle Triassic rocks are therefore absent from the province.
	museum.gov.ns.ca /fossils/geol/triassic.htm (399 words)

	Triassic Period (Site not responding. Last check: 2007-10-17)
		The Triassic is the first period of the Mesozoic Era.
		The term Triassic was first used in the 1830s to describe a sequence of rocks in Germany that consisted of three distinct units.
		These Triassic rocks were defined based on a particular type of fossil assemblage contained within them.
	www.watersheds.org /earth/gtime03a.htm (86 words)

	Dinosaurs
		At the beginning of the Triassic period, there was the largest extinction of species ever known.
		So during the Triassic period there was the appearance of many new forms of life.
		The climate in the Triassic period was hot and dry, causing desert-like conditions.
	www.kidcyber.com.au /topics/dino_Triassic.htm (324 words)

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