Verskil tussen weergawes van "Dier"

14 grepe verwyder ,  3 jaar gelede
 
====Lophotrochozoa====
[[Lophotrochozoa]], wat binne die groep Protostomia ontwikkel het, sluit twee van die mees suksesvolle dierfilums in, [[Mollusca]] en [[Annelida]].<ref>{{cite web |url=http://www.lophelia.org/lophelia/biodiv_6.htm |title=Biodiversity: Mollusca|accessdate=2007-11-19 |publisher=The Scottish Association for Marine Science |archiveurl = https://web.archive.org/web/20060708083128/http://www.lophelia.org/lophelia/biodiv_6.htm |archivedate = 8 July 2006}}</ref><ref>{{cite video | people = Russell, Bruce J. (Writer), Denning, David (Writer) | title = Branches on the Tree of Life: Annelids| medium = VHS | publisher = BioMEDIA ASSOCIATES |year=2000 }}</ref> Eersgenoemde, wat die tweede grootste dierfilum is volgens spesies wat beskryf is, bevat diere soos [[slak]]ke, [[mossel]]s en [[pylinkvis]]se; laasgenoemde die gesegmenteerde wurms, soos [[erdwurm]]serdwurms en [[bloedsuier]]s. Hierdie twee groepe is lank as nou verwant beskou omdat hulle soortgelyke larwes het, maar Annelida is as nader aan Arthropoda beskou omdat albei gesegmenteer is.<ref>{{cite journal |last1=Eernisse |first1=Douglas J. |last2=Albert |first2=James S. |last3=Anderson |first3=Frank E. |title=Annelida and Arthropoda are not sister taxa: A phylogenetic analysis of spiralean metazoan morphology |journal=Systematic Biology |volume=41 |issue=3 |pages=305–330 |date=1 September 1992 |doi=10.2307/2992569 |jstor=2992569}}</ref> Nou word hulle beskou as die resultaat van saamlopende (maar onafhanklike) evolusie vanweë baie morfologiese en genetiese verskille tussen die twee filums.<ref>{{cite journal |title=Phylogenetic Relationships of Annelids, Molluscs, and Arthropods Evidenced from Molecules and Morphology |journal=Journal of Molecular Evolution |volume=43 |issue=3 |pages=207–215 |publisher=Springer |location=New York |date=September 1996 |doi=10.1007/PL00006079 |pmid=8703086 |last1=Kim |first1=Chang Bae |last2=Moon |first2=Seung Yeo |last3=Gelder |first3=Stuart R. |last4=Kim |first4=Won}}</ref>
 
Lophotrochozoa sluit ook Nemertea, of die snoerwurms, Sipuncula en verskeie filums in wat ’n sirkel tentakels met trilhare om die mond het.<ref>{{Cite book |last=Collins |first=Allen G. |title=The Lophophore |url=http://www.ucmp.berkeley.edu/glossary/gloss7/lophophore.html |year=1995 |publisher=University of California Museum of Paleontology |accessdate=2015-03-23}}</ref>
 
[[Platyzoa]] sluit die filum [[PlatyhelminthesPlatyhelminth]], of die platwurms, in.<ref name="Gilson">{{cite book|last=Gilson|first=Étienne|title=El espíritu de la filosofía medieval|year=2004|publisher=Ediciones Rialp|isbn=978-84-321-3492-0|page=384}}</ref> Hulle is eers as van die mees primitiewe Bilateria beskou, maar dit lyk nou of hulle uit meer komplekse voorouers ontwikkel het.<ref>{{cite journal |last1=Ruiz-Trillo |first1=Iñaki |last2=Riutort |first2=Marta |last3=Littlewood |first3=D. Timothy J. |last4=Herniou |first4=Elisabeth A. |last5=Baguña |first5=Jaume |title=Acoel Flatworms: Earliest Extant Bilaterian Metazoans, Not Members of Platyhelminthes |date=19 March 1999 |journal=Science |volume=283 |issue=5409 |pages=1919–1923 |doi=10.1126/science.283.5409.1919 |pmid=10082465 |bibcode=1999Sci...283.1919R}}</ref> Die groep bevat ’n paar parasiete, soos [[suigwurm]]ssuigwurms and [[lintwurm]]slintwurms.<ref name="Gilson" /> Platwurms het nie ’n seloom of buikholte nie, nes hul naaste verwante, die mikroskopiese Gastrotricha.<ref name="umodena">{{cite web |url=http://www.gastrotricha.unimore.it/overview.htm |title=Gastrotricha: Overview |accessdate=2008-01-26 |last=Todaro |first=Antonio |work=Gastrotricha: World Portal |publisher=University of Modena & Reggio Emilia}}</ref> Die ander Platyzoa-filums is meestal mikroskopies en het skynbuikholtes. Die belangrikste groep is [[Rotifera]], of die raderdiertjies, wat algemeen in wateromgewings voorkom. Hulle sluit ook Acanthocephala, Gnathostomulida, Micrognathozoa en moontlik Cycliophora in.<ref name="IntroCyclio">{{cite journal |last=Kristensen |first= Reinhardt Møbjerg |date=July 2002 |title=An Introduction to Loricifera, Cycliophora, and Micrognathozoa |journal=Integrative and Comparative Biology |volume=42 |issue=3 |pages=641–651 |doi =10.1093/icb/42.3.641 |pmid=21708760}}</ref> Hierdie groepe het almal komplekse kake en behoort tot die filum Gnathifera.
 
==Getal bestaande spesies==