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Topic: Deinonychosauria

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	Dromaeosauridae - Wikipedia, the free encyclopedia
		Dromaeosaurids are theropods, and may be the sister taxon to Avialae (birds and proto-birds).
		Dromaeosauridae is a subgroup of Deinonychosauria, and includes such animals as Deinonychus, Dromaeosaurus, Velociraptor, Saurornitholestes, and Utahraptor.
		Dromaeosauridae is sometimes seen as synonymous to Deinonychosauria, when Troodontidae is placed in less derived maniraptorans.
	en.wikipedia.org /wiki/Dromaeosauridae (717 words)

	Deinonychosauria - Wikipedia, the free encyclopedia
		The Deinonychosauria ("fearsome claws") were a successful clade of theropods in the Cretaceous period.
		These carnivores are known for their switchblade-like second toes.
		By some definitions, Deinonychosauria and Dromaeosauridae are synonyms.
	en.wikipedia.org /wiki/Deinonychosauria (121 words)

	Deinonychosauria [The Dinosauricon]
		The most striking feature of the Deinonychosauria was the large second pedal ungual, which was highly mobile and could swing back and forth, thus giving it the nickname "switchblade claw" or "sickle claw".
		Similar claws were present on the feet of other basal Paraves, as well as Troodontidae (which may very well belong to Paraves) and Noasaurus leali (although the latter's was not as similar, and evolved convergently).
		Troodontidae were once included in Deinonychosauria because of their "sickle claws", but they may not belong.
	dino.lm.com /taxa/sample.html (190 words)

	Jason Perrott (Site not responding. Last check: 2007-10-08)
		It is known as part of the Deinonychosauria Genus.
		They have also been called the “Sickle-Clawed Killers” and were given this name due to the razor sharp claws on their feet.
		It is the largest of the Deinonychosauria other species such as the Velociraptor, Pyroraptor and Bambiraptor.
	www.priweb.org /ed/ICTHOL/ICTHOLrp/10rp.htm (622 words)

	Deinonychosauria (Site not responding. Last check: 2007-10-08)
		Classifiction of the torrent raptors is hampered by the fact that they are derived from a branch of Deinonychosauria far removed from any living group and isolated for 50 million years, and by their adaptation to a unique lifestyle.
		The 70 cm long torrent raptor is an aberrant maniraptoran associated with fast flowing mountain streams along the length of the Andes.
		DNA studies suggest that its direct ancestors diverged from the the rest of the Deinonychosauria as far back as the Middle Jurassic.
	www.unet.univie.ac.at /~a0000265/Deinonychosauria.html (2157 words)

	biolrev
		In its first formulation, Deinonychosauria is defined as a node-based taxon consisting of 'Troodon, Velociraptor, their most recent common ancestor and all descendants'.
		Deinonychosauria, Neornithes), in which case the new definition is entirely dependent on the stability of those terms, or does one select genera or species as the subordinates (e.g.
		As shown in the theropod-bird example, point (1) is illustrated by the fact that Sereno (1998) is explicit in his definition of Deinonychosauria, while Padian and colleagues (1999) are equally explicit in theirs, but the two definitions do not coincide.
	palaeo.gly.bris.ac.uk /Essays/phylocode/biolrev.html (10073 words)

	A reply to Ashby Camp and TrueOrigins on Avian Phylogeny - EvoWiki
		In a curious passage in his review, Camp asserts that as the most basal Deinonychosauria, e.g., Sinornithosaurus millenii and Microraptor gui, are more conspicuously birdlike than derived Deinonychosauria, such as Velociraptorinae, it follows that theropod origin is an “ad hoc” hypothesis and of questionable validity.
		As basal Deinonychosauria will be closer to the common ancestry of Eumaniraptora, and furthermore closer to the urvogel in phylogenetic terms, it is only to be expected that the most basal Deinonychosauria will most closely resemble basal avians.
		Basal Deinonychosauria display classic signs of increased arboreal locomotion in the elongation of the distal pedal phalanges at the expense of the proximal phalanges, the dorsoventral excursion of the glenoid fossa, elongation of the forelimbs, and perhaps even the classical, functionally didactyl pes of deinonychosaurs (Chatterjee 1997, Paul 2002).
	wiki.cotch.net /index.php/A_reply_to_Ashby_Camp_and_TrueOrigins_on_Avian_Phylogeny (9464 words)

	Deinonychosauria - EvoWiki
		Deinonychosauria Colbert and Russell, 1969 sensu Gauthier, 1986 emended Currie and Padian, 1997
		Common ancestor of all forms closer to Deinonychus than Neornithes and all descendants.
		This page was last modified 16:33, 23 Mar 2005.
	wiki.cotch.net /index.php/Dromaeosaurs (83 words)

	Untitled Document (Site not responding. Last check: 2007-10-08)
		Their name comes from the misconception that they ate eggs, however it has been suggested that they ate molluscs instead.
		Deinonychosauria consists of two families Troodontidae and Dromaeosauridae.
		Troodontidae is one of the rarest groups, they are of small size with long hindlimbs and the largest relative brain size of all dinosaurs.
	uk.sapphiresoft.net /strix_elohim/theropod4.html (257 words)

	Velociraptor Resource Page
		Relationship trees like these are developed via a branch of biology known as cladistics, which is one of the three major type of taxonomy [excellent Cladistics introduction] [overview of taxonomy].
		Class Dinosauria, Order Saurischia, Suborder Theropoda, Infra order Deinonychosauria (members of this Infra order are also called dromaeosaurs).
		The closest relatives of the Velociraptor were the Deinonychus (Deinonychus antirrophus) and the Saurornitholestes (Saurornitholestes langstoni).
	www.geocities.com /oyster93/velociraptor.htm (554 words)

	GEOL 104 Lecture 24: Theropoda III, Eumaniraptora: Dinosaurs of the Air
		Deinonychosauria ("Deinonychus lizards") have a greatly enlarged sickle-shaped claw on pedal digit II, which is retractable.
		Note: some studies place troodontids and dromaeosaurids together in Deinonychosauria; others put dromaeosaurids closer to birds; still others put troodontids closer to birds.
		Nevertheless, it is within the maniraptoran coelurosaurs that the birds arose.
	www.geol.umd.edu /~tholtz/G104/10424arch.htm (1314 words)

	troodontidae (Site not responding. Last check: 2007-10-08)
		In addition, until recently there had been no good basal troodontid remains known, hindering comparisons.
		With the discovery of Sinovenator, however, Troodontidae seems to mesh with Dromaeosauridae in Deinonychosauria, just as in the early 1980s.
		For a long time, this family was known as Saurornithoididae, because Troodon was thought to be a dubious pachycephalosaurid.
	personal2.stthomas.edu /jstweet/troodontidae.htm (1038 words)

	maniraptora (Site not responding. Last check: 2007-10-08)
		Maniraptora is the sister group to Arctometatarsalia and together with it makes up Maniraptoriformes.
		It has three main groups: Deinonychosauria, including Dromaeosauridae, or "raptors", and the gracile Troodontidae; a possible group comprised of Oviraptorosauria (Caenagnathidae, Oviraptoridae, and ?Avimimidae), and Therizinosauria; and Avialae.
		Feathers or protofeathers are known for deinonychosaurians, basal oviraptorosaurians, basal therizinosaurians, and avialans (this one is easily verified), suggesting all maniraptorans possessed one or the other.
	personal2.stthomas.edu /jstweet/maniraptora.htm (1901 words)

	DinoData Dinosaurs Classification Maniraptora (Site not responding. Last check: 2007-10-08)
		Named by Gauthier (1986) to emphasize that "Avialae and Deinonychosauria (or at least dromaeosaurs) shared a common ancestor exlclusive of Ornithomimidae.
		Its a stem-based taxon with a series of synapomorhies to diagnose it.
		Maniraptorans are united by the possession of modified elements in the wrist; the semilunate carpal is a bone unique to this group along with other modifications of the forelimb, it makes the flight stroke in birds possible.
	www.dinodata.net /Dd/Namelist/CLASSIF/Maniraptora.htm (347 words)

	New Dinosaur Species Discovered in Argentina (Site not responding. Last check: 2007-10-08)
		He said their discovery confirms that deinonychosaurs were present in the Southern Hemisphere during the Cretaceous period.
		"This helps us better understand the South American Cretaceous faunas, and the diversity within Deinonychosauria," Holtz said.
		Novas, the Argentine paleontologist, said evidence that deinonychosaurs and related theropods were present in the Southern Hemisphere during Cretaceous period is allowing paleontologists to "reinterpret the evolutionary history of predatory dinosaurs."
	news.nationalgeographic.com /news/2005/02/0223_050223_neuquenraptor.html (516 words)

	Lectures 17 and 18 - Late Jurassic: Morisson, Tendaguru
		Now we are in a position to look at the major groups of theropods examined so far.
		The summary cladogram, below, includes Ornitholestes, a group that includes Velociraptor (the Deinonychosauria), as well as birds plus Archaeopteryx and its relatives (the Avialae).
		The Deinonychosauria plus the Avialae comprise the Maniraptora, which we shall look at in the next lectures.
	www.ldeo.columbia.edu /edu/dees/courses/v1001/morisson14.html (3060 words)

	[No title]
		The parsimony analysis resulted in a set of 7776 most parsimonious trees of 648 steps (CI = 0.417, RI = 0.742) found in 727 out of 1000 replicates.
		In the present analysis, Neuquenraptor is depicted nested within Deinonychosauria due to the presence of the following internested synapomorphies (characters marked with an asterisk have ambiguous optimization).
		Below, the complete strict consensus of the 7776 most parsimonious trees and the reduced strict consensus of the same set of trees are shown.
	www.nature.com /nature/journal/v433/n7028/extref/nature03285-s1.doc (1134 words)

	The 2003 Texas Dinosuars Exhibit (Site not responding. Last check: 2007-10-08)
		Loan from: The femur is from the Texas Memorial Museum at Austin collection.
		Parent Clades: Saurischia Theropoda Tetanurae Coelurosauria Deinonychosauria Dromaeosauridae
		Time Chart: Lower Cretaceous 121-99 Ma Exhibit: scull cast.
	cs1.mcm.edu /~young3/boneheads/exhibit.htm (706 words)

	DinoData Dinosaurs Classification Deinonychosauria (Site not responding. Last check: 2007-10-08)
		Gauthier (1986) cladistically defined and diagnosed Colbert and Russell's (1969) term Deinonychosauria, including Dromaeosauridae and
		Gauthier's definition was taxon based and so requires a stem-or node-based definition in the Phylogenetic system.
		It is appropriate to redifine Deinonychosauria as a stem-based taxon comprising all maniraptorians closer to Deinonychus than to birds; its sister taxon is
	www.dinodata.net /Dd/Namelist/CLASSIF/Deinonychosauria.htm (103 words)

	Raptor Research Group Title Page (Site not responding. Last check: 2007-10-08)
		See subscriber info in the Menu for more information.
		Velociraptor: Scientific name Dromaeosaurid deinonychosauria, also known as the 'quick plunderer' of the late Cretaceous period.
		A fierce 6ft long two legged predator, the velociraptor was a swift runner and had long three fingered hands and scythe like retractable talons on each foot.
	www.raptorgroupresearch.com /raptortitle.html (455 words)

	MEA592D Dinosaur Osteology: Lecture 6
		According to Holtz 1999, a strict consensus produces a 7- part polytomy; higher categories are less stable than the family groups; for the purposes of this course family group names will be used.
		"Deinonychosauria" (Colbert and Russell 1969, AMNH Novitates 2380) second foot claw evolved:
		The term is generally suspect, but is retained by Sereno 1997
	www4.ncsu.edu /~rjpatchu/paleobiology/Dino_Osteology/lect6.html (5045 words)

	[No title] (Site not responding. Last check: 2007-10-08)
		Great Dane named Scooby-Doo and four teenagers : Fred "Freddie" Jones, Daphne Blake, Velma Dinkley, and Norville "Shaggy" Rogers Shaggy Contents 1 Creation and development 2 The CBS years 2.1 Scooby-Doo, Where Are You!
		Velociraptor Conservation status: Fossil Scientific classification Kingdom: Animalia Phylum: Chordata Class: Archosauria Superorder: Dinosauria Order: Theropoda Infraorder: Coelurosauria Superfamily: Deinonychosauria Family: Dromaeosauridae Genus: Velociraptor Species: mongoliensis Binomial name Velociraptor mongoliensis, Velociraptor, meaning roughly "fast thief", is a
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	www.en-cyclopedia.com /index1/ve (1765 words)

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