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Topic: Infraclass (zoology)

	Hobart & William Smith Queensland Term: UQ Vet Farm
		The common brushtail possum is a medium sized diprotodont with a body length of 500 mm, tail length of 380 mm, and a weight of 4 kg.
		The red-necked pademelon is a somewhat larger diprotodont with a body length of 500 mm, tail length of 400 mm, and a weight of 6 kg.
		The grey kangaroo is a large diprotodont with a body length of 1 m, tail length of 90cm, and a weight of 50 kg.
	people.hws.edu /mitchell/oz/VetFarm96.html (1101 words)

	www.myriapoda.org
		The higher taxa (subfamilies and orders) are distinguished primarily by aspects of the exoskeleton, the number of legs and segments, the profile and general body form, the configuration of the head, and the presence or absence, and position when present, of the sperm transfer or copulatory appendages in males.
		The infraclass Pentazonia, comprising three orders based primarily on the number of segments and whether or not the organisms volvate, contains relatively short, broad millipedes in which the five segmental sclerites (a dorsal tergite, ventral sternite, and two lateral pleurites) are separate and loosely connected by membrane.
		The remaining 12 orders, containing the vast majority of species, belong to the infraclass Helminthomorpha, which are elongate, worm-like millipedes with varying degrees of fusion among the segmental sclerites that culminates in the condition in the Polydesmida in which they coalesce into a complete ring with no evidence of suture lines.
	www.myriapoda.org /diplopoda/millipede_general_info.html (2654 words)

	Taxonomy - New World Encyclopedia Preview
		The International Code of Zoological Nomenclature (ICZN) is a set of rules in zoology to provide the maximum universality and continuity in classifying animals according to taxonomic judgment.
		For example, the traditional classification of primates (class Mammalia — subclass Theria — infraclass Eutheria — order Primates) is challenged by new classifications such as McKenna and Bell (class Mammalia — subclass Theriformes — infraclass Holotheria — order Primates).
		These differences arise because there are only a small number of ranks available and a large number of proposed branching points in the fossil record.
	www.newworldencyclopedia.org /preview/Scientific_classification (2680 words)

	2001 Queensland Term Postcards
		Midway through the program, Dr. Frank Carrick of the Department of Zoology at UQ provided a lecturs on Australian on marsupial biology with a special emphasis on koalas and the reproductive adaptions of these animals.
		The agile wallaby is a larger diprotodont with a body length of 80 cm, tail length of 77 cm, and a weight of 15 kg.
		They are reasonably common and may be found in not only in swamps and gullies, as their name would indicate, but also in open forests, heathlands and along shrubby waterways.
	people.hws.edu /mitchell/cards01/VetFarm.html (1205 words)

	Classification Review
		Taxonomy is the science of making classifications, while biological nomenclature concerns the legalistics of classification; that is, the rules involved in how organisms are named.
		In zoology, the second part of the species name is never capitalized; in botany, there are circumstances where capitalization is possible, but when it's allowable is not always easily determined; it is acceptable to not capitalize it even when allowable.
		Most of these ranks are not necessary for anyone except specialists who need to finely dissect relationships, but some groups really need one or more ranks beyond the minimal.
	museum.utep.edu /chih/NHCD/classification.htm (1024 words)

	Scientific classification information - Search.com (Site not responding. Last check: 2007-10-20)
		Today, nomenclature is regulated by Nomenclature Codes, which allows names divided into ranks; see rank (botany) and rank (zoology).
		The usual classifications of five species follow: the fruit fly so familiar in genetics laboratories (Drosophila melanogaster), humans (Homo sapiens), the peas used by Gregor Mendel in his discovery of genetics (Pisum sativum), the "fly agaric" mushroom Amanita muscaria, and the bacterium Escherichia coli.
		These differences arise because there are only a small number of ranks available and a large number of branching points in the fossil record.
	www.search.com /reference/Scientific_classification (1964 words)

	CSIRO PUBLISHING - Australian Journal of Zoology (Site not responding. Last check: 2007-10-20)
		Most of this variation is due to differences in body mass; the least-squares, log-log regression of mammalian FMR on body mass (kJ day-1 = 5.27 g0.723) has a coefficient of determination (r2) of 0.961, indicating that variation in log(body mass) accounts for 96% of variation in log(FMR).
		The scaling of FMR in marsupials (kJ day-1 = 10.83 g0.582, 17 species) differs significantly from that in eutherian mammals (kJ day-1 = 4.63 g0.762, 44 species), and the respective r2-values (0.978 and 0.972) indicate that these taxonomic infraclasses explain another 1% of variation in log(FMR).
		After adjusting for mass and infraclass effects, residual variation is still substantial (2.5-fold among marsupials and 6-fold among eutherians).
	www.publish.csiro.au /nid/90/paper/ZO9940043.htm (230 words)

	Marsupialia
		Home > The Canadian Encyclopedia > Zoology > Mammals
		Marsupialia, order of MAMMALS belonging to the infraclass Metatheria, comprising some 280 living species, of which two-thirds are found in Australia.
		The Virginia or North American OPOSSUM (Didelphis virginiana) is the only marsupial found in Canada.
	www.thecanadianencyclopedia.com /index.cfm?PgNm=TCE&TCE_Version=A&ArticleId=A0005126&MenuClosed=0 (217 words)

	ScienceDaily: Irwin family says private goodbye
		UBC Prof's Research Challenges Prevailing Theory Of How New Species Evolve (January 25, 2005) -- A research team lead by University of British Columbia zoology assistant professor Darren Irwin is the first in the world to demonstrate a genetic gradient--or path of gradually changing genetic...
		Since prehistoric times people have lived by the seas and rivers for the access to cheap and quick transportation and...
		Barnacle -- A barnacle is a type of arthropod belonging to infraclass Cirripedia in the subphylum Crustacea.
	www.sciencedaily.com /upi/?feed=Entertainment&article=UPI-1-20060910-18440300-bc-australia-irwin.xml (1499 words)

	Biol. 452 - Mammal Taxonomy, Skulls (Site not responding. Last check: 2007-10-20)
		A * indicates that a species is NOT found in Washington.
		Infraclass Metatheria [meta = between; "middle group "
		Infraclass Eutheria [eu = true; thus "most derived"]
	courses.washington.edu /vertebra/452/labs/mammal_skull_lab.htm (1794 words)

	ceratas (Spanish to English translation glossary) Zoology,Science
		The name is appropriate since the dorids (infraclass Anthobranchia) breathe through a branchial plume of bushy extremities on their back, rather than using gills.
		By contrast, on the back of the aeolids in infraclass Cladobranchia there are brightly colored sets of tentacles called cerata.
		of Sciences (Department of Invertebrate Zoology), nº 019048 (holotipo)...
	www.proz.com /kudoz/1627204 (625 words)

	Taxon (Site not responding. Last check: 2007-10-20)
		The prefix super- indicates a rank above, the prefix sub- indicates a rank below.
		In zoology the prefix infra- indicates a rank below sub-.
		Do note that rank is relative, and restricted to the particular scheme used.
	www.ufaqs.com /wiki/en/ta/Taxon.htm (145 words)

	GENERAL ZOOLOGY - BIOL 1413 (Site not responding. Last check: 2007-10-20)
		Upon completion of these articles, a one page written summary of each article will be completed and returned to the study center director.
		Each student must read and summarize two journal articles dealing with zoology.
		One article should be from a traditional paper journal and the other from the internet.
	www.accd.edu /sac/biology/ratorres/printouts/psm31a.htm (5573 words)

	issg Database: Ecology of Xenopus laevis
		Reviewed by: Dr. John Measey, Department of Zoology, Natural History Museum, London, UK.
		Compiled by: Dr. John Measey, Department of Zoology, Natural History Museum, London, UK.
		The Global Invasive Species Database is managed by the Invasive Species Specialist Group (ISSG) of the IUCN Species Survival Commission.
	www.issg.org /database/species/ecology.asp?si=150&fr=1&sts=sss (468 words)

	ScienceDaily: Even Fish Don't Swim Well When They're Young
		Oviparous animals are animals that lay eggs, with little or no other...
		Frog zoology -- About 400 million years ago, some members of the sarcopterygian group of fish moved onto land.
		Today, these animals still spend part of their lives in water and...
	www.sciencedaily.com /releases/2006/04/060422122018.htm (1982 words)

	[No title]
		There will be no homework on this tonight, but anyone who presents me with a voluntary report on today's lesson will receive 10 points extra credit on their final grade for this marking period.
		AKA Bob "Glad to be back, though I was never really all that gone" SCott ------------------------------ Date: Wed, 19 May 1999 16:48:34 -0400 Subject: Re: TMBG: Time For A Zoology Lesson....
		I wonder if I was to report all that I've learned here to my Biology teacher, if maybe she'd let me get out of the fetal pig dissection tomorrow.
	www.tmbg.org /discussion/mail/list/archive/1999/Digest.17-20 (4344 words)

	The interphotoreceptor retinoid binding protein gene in therian mammals: Implications for higher level relationships ...
		The subclass Theria of Mammalia includes marsupials (infraclass Metatheria) and placentals (infraclass Eutheria).
		Marsupials (infraclass Metatheria) and placentals (infraclass Eutheria) together compose the subclass Theria of Mammalia.
		each mammalian infraclass also allows for subdivision of long
	www.pnas.org /cgi/content/full/94/25/13754 (4121 words)

	Scout Report Archives (Site not responding. Last check: 2007-10-20)
		Topics addressed at this site include the Linnaen system of classification, amount of species in our world, the importance of biological diversity, the history of classification, and the relevancy of classification in the present day.
		There are links to the Main Menu, a Practice Quiz, and the other topics in the tutorial including Principals of Class, Kingdom to Subphylum, Class, and Subclass to Infraclass.
		Additionally, to link to a comprehensive glossary of relevant terms click on the Ecological Niches or Natural Selection links at the bottom of the site.
	www.scout.wisc.edu /Archives/SPT--FullRecord.php?ResourceId=19537 (137 words)

	Education: Mammals
		Home > Links > Chemistry and Biology > Zoology > Metazoa > Vertebrata > Mammals > Education
		Types of Mammals, Diet, Mammal Printouts, Mammalian Evolution, Ice Age Mammals, Mammal Classification.
		Introduction to Mammalia - Body structure, Classification, Infraclass Prototheria, Infraclass Metatheria, Infraclass Eutheria, Key features, Taxonomy Table.
	www.infochembio.ethz.ch /Links/en/zool_saeuget_lehr.html (80 words)

	Comparative Zoology Review Questions - Test 3
		Subclass _____ is the only group of mammals that are egg-layers.
		List two differences between infraclass metatheria and infraclass eutheria.
		How does the evolution of mammals parallel the evolution of birds?
	web.aurora.edu /~djhorn/comparativezoology/ReviewQuestions/reviewquestionstest3class2.html (851 words)

	[No title]
		• Lewis and Clark expedition intended to survey and map Missouri and Columbia Rivers; study botany, climatology, geology, geography, mineralogy, and zoology
		Convergence: development of similar styles of life by distantly related species- golden moles of Africa and marsupial “moles” of Australia belong to different infraclasses and separated by 70my of evolutionary history but habits are much the same.
		Primitive: One that has not departed far from the ancestral type, or at least has retained many structural characters typical of the ancestral type - Monotremes (egg layers) most primitive
	www.shsu.edu /~bio_mlt/mammalogy1.html (2413 words)

	Asteroidea
		Critical differences in structure and arrangement of the ossicles of the ambulacral column define two groups of asteroids: an extinct fauna restricted to the Paleozoic and the mostly extant (mostly) post-Paleozoic asteroids (Blake 1987, Gale 1987).
		Blake and Hagdorn (2003) recently recognized this distinction formally with diagnosis of a new subclass: Ambuloasteroidea, containing the Paleozoic Calliasterellidae and Compsasteridae in addition to post-Paleozoic asteroids (Infraclass Neoasteroidea Gale 1987).
		Click on an image to view larger version and data in a new window
	tolweb.org /Asteroidea (3763 words)

	Virtual Library of Useful URLs arranged by Dewey 540-599 Natural Sciences
		591.77 Marine animals (Aquatic animals), (Marine fauna), (Marine zoology), (Sea animals), (Water animals), (Marine mammals)
		The Zookeeper is seeking assistance to add more info to Zoo Reviews.
		Online Collections include Museum of Vertebrate Zoology, California Academy of Sciences, Field Museum of Natural History, and Texas Memorial Museum, University of Texas.
	www.aresearchguide.com /540-599.html (6297 words)

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