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Topic: Polyodontidae

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	Acipenser brevirostrum
		Though the Paddlefish (Polyodontidae) is exclusively freshwater, it is systematically located in the same order as the sturgeon due to several internal and external characters.
		The sturgeons, in general, have also been compared with sharks due to many of the same characters shared with Polyodontidae: spiracles, heterocercal caudal fin, largely scaleless body, and a spiral valve intestine.
		The two families that make up the order Acipenseriformes, Acipenseridae and Polyodontidae, presumably deviated from each other during the Jurassic time period, and share a number of these primitive traits.
	www.bio.utexas.edu /courses/bio354l/Projects/1999/Cummings_Natalie (1105 words)

	ORDER II1 - Online Information article about ORDER II1
		The mouth was edentulous, praemaxillary bones were absent, but the maxillary bone was well developed, though small; the membrane bones of the skull were paired; branchiostegal rays were present; scales were absent, except on the caudal See also:
		Eocene, praemaxillaries are absent and the mouth is edentulous (Acipenseridae) or beset with See also:
		teeth (Polyodontidae), the membrane bones of the skull are more irregular and comprise azygous elements, branchiostegal rays are absent, and the body is naked or covered with small ossifications and longitudinal series of bony scutes, whilst the caudal fin is scaled exactly as in the Palaeoniscidae.
	encyclopedia.jrank.org /ORC_PAI/ORDER_II1.html (1128 words)

	Pettibone (1989) Revision of the aphroditoid polychaetes of the family Acoetidae Kinberg (=Polyodontidae Augener) and ... (Site not responding. Last check: 2007-10-31)
		Pettibone (1989) Revision of the aphroditoid polychaetes of the family Acoetidae Kinberg (=Polyodontidae Augener) and reestablisment of Acoetes Audouin and Milne-Edwards, 1832, and Euarche Ehlers, 1887
		Revision of the aphroditoid polychaetes of the family Acoetidae Kinberg (=Polyodontidae Augener) and reestablisment of Acoetes Audouin and Milne-Edwards, 1832, and Euarche Ehlers, 1887
		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=102841205&showStat=Ratings (123 words)

	Worldwide Polychaete Family List
		An alphabetical list of all known families, their current status, with an indication of salient features or affinities, and also example genera.
		A few families, for example Arabellidae, Polyodontidae, have comparatively recently changed names or been subsumed into other families, and these old names are included here for easy cross-reference.
		Major families (20 or more species) are tagged with a double asterisk.
	www.annelida.net /pc-fam.html (594 words)

	Sturgeon Books
		This volume presents a synthesis of basic biological and conservation data for all species of sturgeons (Acipenseridae), paddlefishes (Polyodontidae) and their fossil allies in the order Acipenseriformes.
		Since the Jurassic, the four families of sturgeon-like fish have been restricted to the Holarctic, where until very recently they flourished in most major river systems.
		Recent evidence from fossil Acipenseriformes strongly supports a sister-group relationship of Acipenseridae and Polyodontidae as the suborder Acipenseroidei.
	members.magnet.at /aquaculture/sturgeonbooks.htm (2332 words)

	Bibliography of Sturgeons
		We will not include papers on the Polyodontidae since an almost complete bibliography on this family has been published recently by Drs.
		Osteology and phylogenetic relationships of fossil and recent paddlefishes (Polyodontidae) with comments on the interrelationships of Acipenseriformes.
		Gray, R. Diel and Seasonal Movements of White Sturgeon, Acipenser transmontanus, in the Mid-Columbia River.
	www.geocities.com /keivany/sturgbibl.html (11998 words)

	FishBase Glossary Searched Term (Site not responding. Last check: 2007-10-31)
		Fishes of the Family Polyodontidae, Order Acipenseriformes (sturgeons and paddlefishes).
		Poissons de la famille des Polyodontidae, ordre des Acipenseriformes (esturgeons et spatules).
		Voir FishBase pour plus d'information sur cette famille.
	fishbase.org /LarvalBase/Glossary/Glossary.cfm?TermEnglish=Paddlefishes (38 words)

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