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Topic: Petromyzontiformes

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	Lamprey - Wikipedia, the free encyclopedia
		The lampreys entail the single order Petromyzontiformes and family Petromyzontidae.
		Cephalaspidomorpha is sometimes given as a subclass of the Cephalaspidomorphi.
		Petromyzoniformes and Petromyzonidae are sometimes used as alternative spellings for Petromyzontiformes and Petromyzontidae respectively.
	en.wikipedia.org /wiki/Petromyzontidae (1147 words)

	Introduction to the Petromyzontiformes
		These are very similar to living lampreys, and suggest that the group has not changed very much in the past 300 million years.
		A few other unarmored, jawless fossil fishes (traditionally classified in the Anaspida) from elsewhere in the world are now thought by some to be members of the Petromyzontiformes, or at least close relatives.
		The earliest likely candidate is the early Silurian fossil Jamoytius, which may have had a cartilage ring supporting a round mouth, like living lampreys.
	www.ucmp.berkeley.edu /vertebrates/basalfish/petro.html (578 words)

	Centrarchid Project, Mayden Lab
		Specific objectives of the study are to examine the alternative hypotheses of relationships between hagfishes, lampreys, and gnathostomes, test the monophyly of Petromyzontiformes and constituent families, and determine species relationships and generic boundaries within the order.
		Some researchers have arged that Agnatha is a monophyletic group (they shared a common ancestor) and others have argued that lampreys, or Petromyzontiformes, are more closely related to the Gnathostomata then they are to the hagfishes.
		Unfortunately, several species of lampreys are faced with concervation concerns and are either likely extinct (Tetrapleurodon spacicea of Mexico) or are on a trajectory of extinction if something is not done to protect the species.
	bio.slu.edu /mayden/lamprey (1165 words)

	Palaeos Vertebrates 20.000 Craniata
		Links: Hyperoartia; Introduction to the Petromyzontiformes; Hyperoartia; Neuroethology: Swimming in the Lamprey; Evolution der Fische (German); Phylogénomique.
		Links: Introduction to the Petromyzontiformes; Svenska fiskar: havsnejonöga (Swedish); Geol 437 jawless fishes (NOT \AGNATHA\), Fall, 1995; Lampreys (Petromyzontiformes); Petromyzontiformes (mtDNA equence data); Petromyzontiform.
		Relationship to Petromyzontiformes and to Devonian forms unclear.
	www.palaeos.com /Vertebrates/Units/020Craniata/100.html (970 words)

	Department of Biology, Saint Louis University
		My primary responsibility has been generating and analyzing DNA sequence data for both mitochondrial and nuclear genes.
		I am also co-pi on a NSF sponsored grant to investigate the systematics and evolution of lamprey (Petromyzontiformes) with Dr. Mayden.
		Through this research we hope to elucidate the relationships between parasitic and non-parasitic species as well as the phylogenetic relationships between northern and southern hemisphere lampreys.
	bio.slu.edu /fac/roe.html (482 words)

	Lampetra minima
		Lampetra minima Bond and Kan - Miller lake lamprey.
		IWR: Taxa: Petromyzontiformes: Hendrickson; Lampetra minima Bond and Kan - Miller lake lamprey - map - In: TNHC Fishes of North America - Dean Hendrickson; Lampetra...
		FAMILY: AFBAA02060, PETROMYZONTIFORMES, PETROMYZONTIDAE, LAMPETRA MINIMA, Bond and Kan, 1973, MILLER LAKE LAMPREY, G1, AFBAA02070, PETROMYZONTIFORMES,...
	specieslist.com /fish_species/L/Lampetra_minima.shtml (1232 words)

	Ronald and Wilson (1968) A check list of the parasites of the order Petromyzontiformes (Lampreys)
		Ronald and Wilson (1968) A check list of the parasites of the order Petromyzontiformes (Lampreys)
		A check list of the parasites of the order Petromyzontiformes (Lampreys)
		To view the the latter's ratings, click on Chapters/Papers/Articles in the STATISTICS box, select a publication from the list that appears, and then click on either Quality or Interest in that publication's STATISTICS box.
	www.getcited.org /?PUB=101938778&showStat=Ratings (91 words)

	FishBase Glossary Searched Term (Site not responding. Last check: 2007-10-24)
		Fishes of the Family Petromyzontidae, Order Petromyzontiformes (lampreys).
		Poissons de la famille des Petromyzontidae, ordre des Petromyzontiformes (lamproies).
		Voir FishBase pour plus d'information sur cette famille.
	filaman.ifm-geomar.de /larvalbase/Glossary/Glossary.cfm?TermEnglish=lamproies (42 words)

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