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taxon
taxon
taxon (pl. taxa) Any named taxonomic group of any
rank in the hierarchical
classification of organisms. Thus the taxa Papilionidae, Lepidoptera, Hexapoda, and Uniramia are named examples of a family, order, class, and phylum, respectively.
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Lazarus taxa, refugia and relict faunas: Evidence from graptolites
Magazine article from: Journal of the Geological Society; 1/1/2002; ; 700+ words
; ...such concepts as Lazarus taxa, refugia and relict faunas. The term Lazarus taxon was coined by Flessa...1999) related Lazarus taxa to biotic crises and subsequent...of biotic crisis many taxa go extinct, but others...using the name Lazarus taxon (e.g. Batten 1973...
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Should taxon names be explicitly defined?
Magazine article from: The Botanical Review; 1/1/2003; ; 700+ words
; ...1999; Greuter et al., 2000), each taxon name is assigned a rank (see Articles...nomenclature. Thus, when introducing new taxon names i nto scientific literature, biologists...guidelines are established in the formation of taxon names so that one can readily identify...
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Lazarus taxa and fossil abundance at times of biotic crisis
Magazine article from: Journal of the Geological Society; 5/1/1999; ; 700+ words
; ...extinctions are often followed by intervals in which taxa disappear from the fossil record only to reappear again...of fossiliferous sites and the proportion of Lazarus taxa nor are missing taxa encountered in potential refuges. Therefore, the...
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Survey of State Criteria Used to Determine the Status of Plant Taxa.
Newspaper article from: Endangered Species Update; 7/1/2000; ; 700+ words
; ...respective native taxa (species, subspecies...assigning a plant taxon status for placement...habitat in regard to the taxon's entire main range...distantly-related taxa assigned the highest...when the status of a taxon on the list is deemed...separate lists of taxa of concern that ...
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Round up the usual suspects: common genera in the fossil record and the nature of wastebasket taxa
Magazine article from: Paleobiology; 1/1/2006; ; 700+ words
; ...Neogene, whereas rare taxa show far less change...treat rare and common taxa separately. Vermeij and...relationships between taxon spatial distribution and...effects of common and rare taxa on the results of macroevolutionary...last appearances of a taxon (e.g., Sepkoski 2002...
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MDSI Selected By Denmark's Taxa Faellescentralen For Advantex-Taxi Solution.
PR Newswire; 9/25/1998; 700+ words
; MDSI and Taxa Faellescentralen team up to centralize dispatch...that it has entered into an agreement with Taxa Faellescentralen of Kolding, Denmark to...implementation of Advantex-Taxi will centralize Taxa Faellescentralen's dispatching and fleet...
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NEW TAXA OF TRANSVERSELY-TOOTHED LIZARDS (SQUAMATA: SCINCOMORPHA) AND NEW INFORMATION ON THE EVOLUTIONARY HISTORY OF "TEIIDS"
Magazine article from: Journal of Paleontology; 5/1/2007; ; 700+ words
; ...the transversely-toothed taxa with Bicuspidon as the sister taxon of Polyglyphanodontini new...group, Borioteiioidea new taxon, which is the sister taxon to the Teiioidea (Teiidae...interrelationships of these taxa requires the reevaluation...
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A preliminary study of the relationships of taxa included in the tribe poltyini (Araneae, Araneidae).
Magazine article from: Journal of Arachnology; 5/1/2005; ; 700+ words
; ...and the remaining Poltyini taxa, should also belong. However...found that some of Simon's taxa were seriously polyphyletic...provide a sensible out-group taxon for an analysis of the Australasian Poltys taxa. Most of the other putative...
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Morphological separation of host adapted taxa within the Hyalopterus pruni complex (Hemiptera: Aphididae)
Magazine article from: European Journal of Entomology; 1/1/2007; ; 700+ words
; ...produced three clusters corresponding to the taxa indicated by previous studies using allozyme...views, the present study showed that the taxa have their own distinct morphology. Lastly...for separating the adult apterae of the taxa are given. INTRODUCTION The adaptation...
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Cryptic animal species are homogeneously distributed among taxa and biogeographical regions.(Research article)(Report)
Magazine article from: BMC Evolutionary Biology; 7/19/2007; ; 700+ words
; ...Deviations from the regression line represent CSR taxon variation. Dashed lines represent 95% confidence...figure omitted] Figure 2: Regression of CSR taxon variation on taxon study bias for 19 metazoan taxa . Dashed lines represent 95% confidence intervals...
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taxon
Book article from: A Dictionary of Biology
taxon (pl. taxa) Any named taxonomic group of any rank in the hierarchical classification of organisms. Thus the taxa Papilionidae, Lepidoptera, Hexapoda, and Uniramia are named examples of a family, order, class, and phylum, respectively.
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enigmatic taxon
Book article from: A Dictionary of Zoology
enigmatic taxon A genus or higher taxon of restricted diversity, comprising only one or a few species with affinities that are poorly understood. Many species belonging to enigmatic taxa are known from very few specimens; some have not been seen since they were first described.
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taxa
Book article from: A Dictionary of Ecology
taxa See taxon .
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taxon range zone
Book article from: A Dictionary of Earth Sciences
taxon range zone ( genus zone , species zone , total range zone ) The total body of strata characterized by the presence of a specified taxon , both in geographical extent and time-stratigraphic range. See also RANGE ZONE .
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sister taxa
Book article from: A Dictionary of Ecology
sister taxa In phylogenetics , two taxa connected through a single internal node .
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