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Topic: Diapsida

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	Diapsida (Site not responding. Last check: 2007-11-01)
		Diapsida was named after the two fenestrae (holes) found in the temporal region of the skull of most early and some extant diapsids.
		Diapsida: The most recent common ancestor of araeoscelidians, lepidosaurs, and archosaurs, and all its descendants (Laurin, 1991).
		Gauthier J. A cladistic analysis of the higher systematic categories of the Diapsida.
	tolweb.org /tree?group=Diapsida&contgroup=Amniota (2642 words)

	Turtle Origins
		The skull of the earliest fossil turtle, Proganochelys from the Upper Triassic of Germany (7), shows a closed temporal region, suggesting that turtles are a surviving branch of Anapsida.
		Recent reanalysis (12) of the data set (5) with Sauropterygia included increased support for the position of turtles within Diapsida, but also showed that it is the Sauropterygia that pulls the turtles up into the crown of the reptile tree.
		Although the placement of turtles within Diapsida is the most parsimonious solution on the basis of all data at hand, the statistical support for both lepidosauromorph and archosauromorph affinities of turtles, on the basis of anatomical and molecular data, respectively, may be relatively weak in some cases.
	cas.bellarmine.edu /tietjen/Diversity/turtle_origins.htm (1097 words)

	Home
		Diapsida: This is a very diverse group, both in living and fossil members.
		Sauria: Within Diapsida is a crown group defined as the most recent common ancestor of living lizards and crocodylians, and all of its descendants.
		During the late 1980s, Turtles were though to be related to t he captorhinids, a groups of small Permian reptiles close to, but not quite in Diapsida.
	www.geol.umd.edu /~jmerck/honr219d/notes/l18.html (1510 words)

	Comparative Anatomy Topic 3 - Amphibians and Reptiles (Site not responding. Last check: 2007-11-01)
		Be careful with this term, your author includes in Diapsida the captorhinids, a primitive group that has not yet obtained the diapsid skull, and some animals with a euryapsid skull are included (see below).
		The presence of a euryapsid skull was once used to link ichthyosaurs and plesiosaurs into a monophyletic group; however, the euryapsid skull arose independently in both.
		It makes sense that ichthyosaurs and plesiosaurs are included in Diapsida because they do have modified diapsid skulls.
	www.auburn.edu /academic/classes/zy/0301/Topic3c/topic3c.html (665 words)

	Self-Service Science Forum Message (Site not responding. Last check: 2007-11-01)
		Reptiles are divided (very roughly) into Anapsida and Diapsida, classified (we think, amongst other things) by the number of holes in the skull.
		Turtles are Anapsida (no holes); crocodiles, lizards, snakes and birds are all Diapsida (two holes).
		Within Diapsida, the two main classifications are Lepidosaurs (lizards, snakes and tuatara) and Archosaurs (crocodiles and birds).
	www2.abc.net.au /science/k2/stn/october1999/posts/2458.shtm (137 words)

	Systematic biology on Medscape - 52 2
		Intraorganismal homology, character construction, and the phylogeny of aetosaurian archosaurs (reptilia, diapsida).
		Clarifying aetosaur phylogeny requires more fossils, not more trees--reply to intraorganismal homology, character construction, and the phylogeny of aetosaurian archosaurs (reptilia, diapsida).
		Using a null model to recognize significant co-occurrence prior to identifying candidate areas of endemism.
	www.medscape.com /medline/publicationbrowser/10147/52_3/dt_06012003/abslimit_1 (155 words)

	IngentaConnect The earliest possible choristodere (Diapsida) and gaps in the fos... (Site not responding. Last check: 2007-11-01)
		IngentaConnect The earliest possible choristodere (Diapsida) and gaps in the fos...
		The earliest possible choristodere (Diapsida) and gaps in the fossil record of semi-aquatic reptiles
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	www.ingentaconnect.com /content/geol/jgs/1993/00000150/00000006/15061103 (240 words)

	References - S (Site not responding. Last check: 2007-11-01)
		Plesiosaurs (Diapsida: Sauropterygia: Plesiosauria) are extinct Mesozoic reptiles comprising one of the most successful and widely distributed groups of marine tetrapods.
		They developed a world wide range early in their history and some representatives of the clade survived into the Maastrichtian, becoming extinct perhaps only at the terminal Cretaceous.
		Postcranial skeleton of Pistosaurus and interrelationships of the Sauropterygia (Diapsida) ; Zoological journal of the Linnean Society ; 90 (2) ; 109--131
	www.plesiosaur.com /database/references/reference.S.htm (5982 words)

	Michael J. Benton - EvoWiki (Site not responding. Last check: 2007-11-01)
		Michael J. Benton is an expert on the phylogeny of Diapsida, with significant revisions of diapsid phylogeny appearing in 1982, 1984 and 1985.
		Benton has also devoted a great deal of work to unraveling the origins and early evolution of archosaurs, as well the derivation of Dinosauria, and his early papers on these subjects (1983b, 1984b, 1984c, 1984d, 1986) remain standard references in any contemporary analysis of archosaur phylogeny.
		This page was last modified 20:34, 4 October 2003.
	wiki.cotch.net /index.php?title=Michael_J._Benton&redirect=no (98 words)

	Updates of 2003-09-11
		A new elasmosaurid genus and species [Tetrapoda: Amniota: Diapsida: Sauropterygia: Plesiosauria: Plesiosauroidea: Elasmosauridae:] added.
		New species of Wormlizards [Tetrapoda: Amniota: Diapsida: Lepidosauromorpha: Squamata: Amphisbaenia: Amphisbaenidae:] added.
		Several species of fossil Lacertids [Tetrapoda: Amniota: Diapsida: Lepidosauromorpha: Squamata: Scincomorpha: Lacertidae:] added.
	www.fmnh.helsinki.fi /users/haaramo/updates/2003-09-11.html (1012 words)

	Diapsida - English-French Dictionary - WordReference.com
		We found no French translation for 'Diapsida' in our English to French Dictionary.
		Or did you want to translate 'Diapsida' from French to English?
		Forum discussions with the word(s) 'Diapsida' in the title:
	www.wordreference.com /enfr/Diapsida (57 words)

	Diapsida
		<==o Diapsida Osborn, 1903 (diapsid reptiles; kaksiohimoaukkoiset matelijat) --o †Araeoscelida Williston, 1913
		Gao, K. and Fox, C., 1998: New choristoderes (Reptilia: Diapsida) from the Upper Cretaceous and Palaeocene, Alberta and Saskatchewan, Canada, and phylogenetic relationships of Choristodera.
		Senter, P., 2004: Phylogeny of Drepanosauridae (Reptilia: Diapsida).
	www.fmnh.helsinki.fi /users/haaramo/Metazoa/Deuterostoma/Chordata/Reptilia/Diapsida.htm (308 words)

	CiteULike: A new choristodere (Reptilia: Diapsida) from the Lower Cretaceous of western Liaoning Province, China, and ... (Site not responding. Last check: 2007-11-01)
		CiteULike: A new choristodere (Reptilia: Diapsida) from the Lower Cretaceous of western Liaoning Province, China, and phylogenetic relationships of Monjurosuchidae
		A new choristodere (Reptilia: Diapsida) from the Lower Cretaceous of western Liaoning Province, China, and phylogenetic relationships of Monjurosuchidae
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	www.citeulike.org /article/387660 (74 words)

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