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	Cretaceous - Wikipedia, the free encyclopedia
		The Cretaceous period is one of the major divisions of the geologic timescale, reaching from the end of the Jurassic period, about 146 million years ago (Ma), to the beginning of the Paleocene epoch of the Tertiary period (65.5 Ma).
		Pterosaurs were common in the early and middle Cretaceous, but as the Cretaceous proceeded faced growing competition from the adaptive radiation of birds, and by the end of the period only two highly specialised families remained.
		During the Cretaceous the insects began to diversify, and the oldest known ants, termites and butterflies appeared.
	en.wikipedia.org /wiki/Cretaceous (968 words)

	Cretaceous Fish References
		Paleobiology of the Late Cretaceous shark, Cretoxyrhina mantelli (Lamniformes: Cretoxyrhinidae), from Kansas.
		Dentition of the late Cretaceous lamniform shark, Cretoxyrhina mantelli, from the Niobrara Chalk of Kansas.
		A selachian fauna from the Late Cretaceous of Jordan.
	www.oceansofkansas.com /fish-ref.html (7259 words)

	Encyclopedia: Late Cretaceous (Site not responding. Last check: 2007-10-22)
		Late Cretaceous (also called the Upper Cretaceous) refers to the second half of the Cretaceous period, named after the famous white chalk cliffs of southern England, which date from this time.
		The Cretaceous period is one of the major divisions of the geologic timescale, reaching from the end of the Jurassic period (about 146 MYA) to the beginning of the Paleocene epoch of the Tertiary period (65.
		In the geologic timescale, Valanginian is an age of the Lower Cretaceous epoch of the Cretaceous period of the Mesozoic era of the Phanerozoic eon.
	www.nationmaster.com /encyclopedia/Late-Cretaceous (943 words)

	The Cretaceous Period (Site not responding. Last check: 2007-10-22)
		The Cretaceous is usually noted for being the last portion of the "Age of Dinosaurs", but that does not mean that new kinds of dinosaurs did not appear then.
		It is during the Cretaceous that the first ceratopsian and pachycepalosaurid dinosaurs appeared.
		The Cretaceous Period is part of the Mesozoic Era.
	www.ucmp.berkeley.edu /mesozoic/cretaceous/cretaceous.html (266 words)

	Palaeos Mesozoic: Cretaceous: The Cretaceous Period: p. 1
		The Cretaceous saw the lengthening and widening of Atlantic Ocean, which especially spread further south, while the Alps were formed in Europe.
		(2003) have recently reported that the peak and decline of sea levels in the Late Cretaceous is punctuated by a number of sudden, drastic, marine regressions.
		Nanoplankton with mineralized "armor" are known from the Late Triassic or Early Jurassic.
	www.palaeos.com /Mesozoic/Cretaceous/Cretaceous.htm (2335 words)

	NYC Regional Geology
		TINTON FORMATION - (Late Cretaceous [Late Maastrichtian]) - The Tinton is a massive "olive to evergreen" green glauconitic quartz sand which is locally clay-rich and silty.
		NAVESINK FORMATION - (Late Cretaceous [Early Maastrichtian]) - The Navesink consists of peloidal glauconitic marl and sand that is locally thick bedded or crossbedded, and is locally clay-rich.
		WOODBURY SHALE - (Late Cretaceous [Early Campanian]) - Dark gray clay mud of the Woodbury Shale is exposed in excavations and along the shore of Raritan Bay near Cheesequake State Park, NJ.
	3dparks.wr.usgs.gov /nyc/coastalplain/cretaceous.htm (1219 words)

	Late Cretaceous dinosaurs and crocodyliforms from Egypt and Argentina.
		Late Cretaceous dinosaurs and crocodyliforms from Egypt and Argentina.
		Although the Cretaceous continental tetrapod record of Gondwanan landmasses remains inadequately characterized, recent paleontological efforts have begun to improve this situation.
		This dissertation describes several new dinosaurian and crocodyliform discoveries from Late Cretaceous sediments of the Egyptian Sahara and central Patagonia, Argentina.
	repository.upenn.edu /dissertations/AAI3125851 (221 words)

	The Cretaceous Period of the Mesozoic Era
		Near the end of the Cretaceous the conditions in the west were similar to those of the Carboniferous period with swamps and bogs forming which would later become valuable deposits of coal.
		The climate of the Cretaceous was apparently fairly mild and uniform, but it is possible that toward the end of the period some variant zones of climate had appeared, making the overall climate cooler.
		The Cretaceous is characterized by a revolution in the plant life, with the sudden appearance of the first flower-bearing plants (angiosperms) including the early ancestors of the beech, fig, magnolia, and sassafras.
	www.science501.com /PTCretaceous.html (960 words)

	Cretaceous Dinosaurs of the Southeastern United States D
		Late Cretaceous dinosaurs of the southeastern U.S. comprise 46 specimens that are divided into four taxonomic groups: tyrannosaurids (12); hadrosaurines (22); ornithomimids (12); and nodosaurs (5).
		Late Cretaceous dinosaurs from southeastern states are a significant subset of known eastern North American dinosaurs (Table 1).
		Three modes of occurrence are evident in Late Cretaceous southeastern U.S. stratigraphy: (1) shallow-marine concentrations; (2) shelf tempestites (or sandy event beds); and (3) open-marine accumulations (Figure 3a-c; King, 1995; 1996).
	www.auburn.edu /~kingdat/dinosaur_webpage.htm (4356 words)

	Lecture 19: Late Cretaceous I
		The Late Cretaceous is thus a time of very high sea level and vast excursions of marine waters into the continents creating vast epicontinental seas.
		Ornithischian Dinosaurs from the Late Cretaceous of Mongolia
		Saurischian Dinosaurs from the Late Cretaceous of Mongolia
	rainbow.ldeo.columbia.edu /courses/v1001/mongol16.html (3845 words)

	Late Cretaceous Dinosaurs - ZoomDinosaurs.com
		Koreanosaurus - a poorly-known theropod (bipedal meat-eater) from Korea, late Cretaceous.
		- A late Cretaceous duck-billed dinosaur (plant-eater) with a hollow, helmet-shaped crest.
		From the late Cretaceous to the early Paleocene.
	www.enchantedlearning.com /subjects/dinosaurs/mesozoic/cretaceous/lc.shtml (3361 words)

	Utah Geological Survey - Late Cretaceous Dinosaurs of Utah
		ugs / utah geology / dinosaurs and fossils / late cretaceous dinosaurs
		Torosaurus was a three-horned ceratopsian dinosaur that was widespread in North America at the end of the Cretaceous Period.
		As large as an elephant, its enormous frill was modified from the bones in the rear part of the skull giving it a skull over 10 ft long (the largest of any land living animal).
	www.ugs.state.ut.us /utahgeo/dinofossil/dinlcret.htm (478 words)

	Cretaceous Period - ZoomDinosaurs.com
		The Cretaceous period was the heyday of the dinosaurs.
		The Cretaceous period is named for chalky rock from southeastern England that was the first Cretaceous period sediment studied.
		The Cretaceous saw the rise and extinction of the toothed birds, Hesperornis and Ichthyornis.
	www.enchantedlearning.com /subjects/dinosaurs/mesozoic/Cretaceous.html (567 words)

	LATE CRETACEOUS TO LATE PLEISTOCENE DRAINAGE EVOLUTION OF COBAR UPLAND, N.S.W., AUSTRALIA
		Late Cretaceous to late Pleistocene drainage evolution of Cobar upland, N.S.W., Australia.
		Migration of drainage in the eastern area is indicative of uplift from north to south while the western area the opposite, from south to north.
		The Cobar drainage evolved from south-north in Late Cretaceous to progressively east-west trend in late Tertiary.
	gsa.confex.com /gsa/inqu/finalprogram/abstract_54696.htm (512 words)

	Cretaceous bibliography
		Carpenter, K., 1982, Baby dinosaurs from the Late Cretaceous Lance and Hell Creek Formations, and a description of a new species of theropod: University of Wyoming Contributions to Geology, v.
		Osmolska, H., 1980, The Late Cretaceous vertebrate assemblages of the Gobi Desert, Mongolia: Memoirs of the Geological Society of France, v.
		n., a new troodontid dinosaur from the Late Cretaceous of Mongolia: Acta Palaeontologica Polonica, v.
	www.talkorigins.org /origins/biblio/cretaceous.html (1464 words)

	Late Cretaceous Climate (Site not responding. Last check: 2007-10-22)
		The Late Cretaceous world consisted of many isolated land masses.
		In Europe the marine transgression produced a shift from continental sediments of the Wealden to the chalk.
		Towards the end of the Late Cretaceous there was a rapid fall of global sea level to a low point.
	palaeo.gly.bris.ac.uk /communication/Willson/latecret.html (200 words)

	Reconstruction of the petrosal in Late Cretaceous multituberculates (Mammalia) (Site not responding. Last check: 2007-10-22)
		The earliest skull material is from the late Jurassic of Portugal (Hahn 1969) and is assigned to the suborder Paulchoffatoidea.
		Several isolated petrosals and partial cranial remains are known from the Cretaceous, Paleocene and Eocene of North America of the suborders Ptiolodontoidea and Taenioloabidoidea, and of the suborder Taenioloabidoidea from Asia (see e.g.
		Wible, J. 1990: Petrosals of late Cretaceous marsupials from North America, and a cladistic analysis of the petrosal in therian mammals.
	www.2dgf.dk /online/hurum.htm (1867 words)

	Palaeos Mesozoic: Cretaceous: Late Cretaceous - the Senonian Epoch
		Palaeos Mesozoic: Cretaceous: Late Cretaceous - the Senonian Epoch
		The Late Cretaceous Period of the Mesozoic Era: 65.5 to 98.9 Mya
		Cretaceous Historical Plate Tectonics Paleogeography Biosphere Ages and Epochs Links
	www.palaeos.com /Mesozoic/Cretaceous/Senonian.htm (107 words)

	Mazongshan dinosaur assemblage from late Early Cretaceous of northwest China.
		Mazongshan dinosaur assemblage from late Early Cretaceous of northwest China.
		The Early Cretaceous (144-99 million years age) was a transitional interval in the Earth's evolving terrestrial biota, that witnessed the rise of angiosperm plants, emergence of modern orders of pollinating flies, rapid turnover among major groups of dinosaurs, early radiation of major clades of birds, and diversification of major groups of mammals.
		Phylogenetic analysis reveals a different, dual evolutionary scenario for the derived Late Cretaceous horned dinosaurs in Asia and North American, respectively.
	repository.upenn.edu /dissertations/AAI3043981 (277 words)

	Late Cretaceous -- Facts, Info, and Encyclopedia article (Site not responding. Last check: 2007-10-22)
		Late Cretaceous (also called the Upper Cretaceous) refers toe the second half of the (From 135 million to 63 million years ago; end of the age of reptiles; appearance of modern insects and flowering plants) Cretaceous period, named after the famous white chalk cliffs of southern England, which date from this time.
		(Warm-blooded egg-laying vertebrates characterized by feathers and forelimbs modified as wings) birds become increasingly common and diverse, replacing the (Extinct flying reptile of the Jurassic and Cretaceous having a birdlike beak and membranous wings supported by the very long fourth digit of each forelimb) pterosaurs which retreat to incraesingly specialised ecological niches.
		In the seas, (Click link for more info and facts about mosasaur) mosasaurs suddenly appear and undergo a spectacular evolutionary radiation.
	www.absoluteastronomy.com /encyclopedia/l/la/late_cretaceous.htm (179 words)

	1 (Site not responding. Last check: 2007-10-22)
		Breithaupt, B.H. Nonmammalian vertebrate faunas from the Late Cretaceous of Wyoming.
		Duffin, C.J. A chimaerid (Holocephali, Chimaeriformes) vomerine toothplate from the Upper Cretaceous of Belgium.
		Dutheil, D.B. New freshwater fish from the Late Cretaceous (Cenomanian) of Niger.
	biodb.biology.ualberta.ca /wilson.hp/mesofish/MFNA-CL.html (8184 words)

	Cretaceous Animal Printout- ZoomDinosaurs.com
		The Cretaceous Period was the last portion of the Mesozoic Era and the heyday of the dinosaurs; it was preceded by the Jurassic Period.
		A tank-like, spiked, plant-eating dinosaur from the late Cretaceous period.
		A ceratopsian dinosaur from the late Cretaceous period.
	www.enchantedlearning.com /subjects/dinosaurs/dinotemplates/Cretaceousprintouts.shtml (712 words)

	Late Cretaceous Coal Mine Tracks (Site not responding. Last check: 2007-10-22)
		However, few of the Triassic and Jurassic sites are documented to any extent, and the Late Cretaceous tracksites in coal mines, although historically famous, also lack proper documentation.
		A brief historical overview of the Late Cretaceous coal mine tracks is presented.
		The story of Late Cretaceous dinosaur footprint research is centered around material discovered in the coal mines of Colorado and Utah.
	www.stadiumweb.com /reprints/lockley1.html (1630 words)

	Land-mass migrations of late Cretaceous mammals (Site not responding. Last check: 2007-10-22)
		We have already noted the Cretaceous period as the geological period ranging approximately from 146 million years ago to 65 million years ago.
		This historical picture, which is the present general consensus, is the result of a large number of geological and paleobiological studies, and in paleobiology one important task is to reconstruct the land mass migrations of the fauna and flora evolving through- out these large-scale geographical alterations.
		The authors suggest these new fossil records are the first evidence of gondwanatheres outside South America, and the first indication of cosmopolitanism among late Cretaceous Gondwanan mammals.
	www.geopor.pt /GPnov/lmm.html (260 words)

	LATE CRETACEOUS OCEANIC OXIC EVENT IN TIBETAN HIMALAYAS (Site not responding. Last check: 2007-10-22)
		Late Santonian to early Campanian reddish colored mudstone intercalated with marlstone and limestone is exposed in Tibetan Himalayas.
		C is lowest at the base of the Chuangde Formation and increases stratigraphically upwards; 5) planktonic foraminifers are abundant in red limestones and marls, with highest frequency of biota occurrence in Tibetan Himalayas reached during late Santonian-early Campanian.
		The Late Cretaceous oceanic oxic event appear to signify complete reversal in ocean water chemistry and deep sea sediments diagenesis from the mid-Cretaceous, when organic rich fl shales were deposited in dysoxic environment.
	gsa.confex.com /gsa/2001ESP/finalprogram/abstract_6544.htm (279 words)

	ESH - Online Study Guide - Ch 17 Web Links
		Fossil parrot from the Cretaceous pushes back the origin of modern land birds.
		Late Cretaceous History of the Western U.S. Facies/tectonics and paleogeographic maps.
		Cretaceous Paleogeography of the Southwestern U.S. Includes Early Cretaceous globe; Early, Late, and Latest Cretaceous paleogeography; and Early, Late, and Latest Cretaceous tectonic elements.
	www.whfreeman.com /ESh/CH17/WEBLNK17.HTM (611 words)

	40Ar/39Ar and K-Ar Geochronology and Tectonic Significance of the Late Cretaceous Adel Mountain Volcanics and Spatially ...
		Isotopic dates reported here demonstrate that the Adel Mountain Volcanics are clearly Late Cretaceous and that the volcanic rocks were probably emplaced during an approximately 2- to 3-m.y.
		Syntectonic deformation of the Adel Mountain Volcanics, as well as apparent folding and faulting of Tertiary quartz monzonite sills, indicate that contractional deformation clearly spanned the Late Cretaceous and may have extended to as young as the Paleocene/Eocene boundary at about 55.5 Ma.
		The dike forms a pronounced topographic ridge and may be a feeder for one of the small laccoliths present east and northeast of the field.
	mason.gmu.edu /~sharlan/adelmountainvolcanics.htm (678 words)

	Search Results for Late Cretaceous Epoch - Encyclopædia Britannica
		The known temporal range of supposed primates was extended to about 65 million years ago (Late Cretaceous Epoch) by the discovery in Montana, U.S., of five teeth, representing two species of...
		In the late 19th and early 20th century, many immigrants came to America by way of New York and Boston.
		Text from a late 10th-century man detailing his mission as an envoy of Constantinople to the court of Basil II.
	www.britannica.com /search?query=Late+Cretaceous+Epoch (629 words)

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