Pancrustacea
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2008-06-11T21:58:41Z
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{{Taxobox | name = Pancrustacea
| regnum = [[Animal]]ia
| phylum = [[Arthropod]]a
| unranked_classis = '''Pancrustacea'''
| unranked_classis_authority = Zrzavý & Štys, 1997
| subdivision_ranks = Subphyla
| subdivision = [[Crustacean|Crustacea]]<br/>[[Hexapoda]]
}}
'''Pancrustacea''' is a proposed [[taxon]], comprising all [[crustacean]]s and [[Hexapoda|hexapods]] <ref>{{cite journal | quotes=no|author = J. Zrzavý & P. Štys |title=The basic body plan of arthropods: insights from evolutionary morphology and developmental biology |journal=Journal of Evolutionary Biology |year=1997 |volume=10 |pages=353–367 |doi=10.1007/s000360050029}}</ref>. This grouping is contrary to the [[Atelocerata]] hypothesis, in which [[Myriapoda]] and [[Hexapoda]] are [[sister taxon|sister taxa]], and [[Crustacea]] are only more distantly related.
A [[monophyletic]] Pancrustacea has been supported by several molecular studies <ref>{{cite journal | quotes=no|author=Jeffrey W. Shultz & Jerome C. Regier |title=Phylogenetic analysis of arthropods using two nuclear protein-encoding genes supports a crustacean + hexapod clade |journal=Proc. R. Soc. Lond. B |volume=267 |pages=1011–1019 |url=http://www.life.umd.edu/entm/shultzlab/opiliomd/papers/ProcRSocLondB.pdf |doi=10.1098/rspb.2000.1104 |year=2000}}</ref><ref>{{cite journal | quotes=no |title=A review of arthropod phylogeny: new data based on ribosomal DNA sequences and direct character optimization |author=Gonzalo Giribet & Carles Ribera |journal=Cladistics |volume=16 |pages=204–231 |year=2000 |url=http://www.mcz.harvard.edu/Departments/InvertZoo/pdf_files/Giribet%2520%26%2520Ribera%25202000.pdf |doi=10.1111/j.1096-0031.2000.tb00353.x}}</ref><ref>{{cite journal | quotes=no|author=Francesco Nardi, Giacomo Spinsanti, Jeffrey L. Boore, Antonio Carapelli, Romano Dallai & Francesco Frati |title=Hexapod origins: monophyletic or paraphyletic? |journal=[[Science (journal)|Science]] |volume=299 |pages=1887–1889 |year=2003 |url=http://www.owlnet.rice.edu/~amdave/Porfolio/Framesetup/CrseListPrtflCntnt/CrseCntnt/bios2012/ARTParaphyHexa.pdf |doi=10.1126/science.1078607 |format={{dead link|date=June 2008}} – <sup>[http://scholar.google.co.uk/scholar?hl=en&lr=&q=author%3A+intitle%3AHexapod+origins%3A+monophyletic+or+paraphyletic%3F&as_publication=%5B%5BScience+%28journal%29%7CScience%5D%5D&as_ylo=2003&as_yhi=2003&btnG=Search Scholar search]</sup>}}</ref>, in most of which the subphylum Crustacea is [[paraphyletic]] with regard to insects (that is, that insects are derived from crustacean ancestors)
==References==
<references/>
[[Category:Arthropods]]
[[ca:Pancrustaci]]
[[de:Pancrustacea]]
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