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無板綱

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無板綱
Aplacophora
Head region of the caudofoveate Falcidens
Head region of the caudofoveate Falcidens
科學分類
域: 真核域 Eukarya
界: 動物界 Animalia
亞界: 真後生動物亞界 Eumetazoa
(未分級) 兩側對稱動物 Bilateria

原口動物 Protostomia

超門: 冠輪動物總門 Lophotrochozoa
門: 軟體動物門 Mollusca
綱: 無板綱 Aplacophora

見內文

無板綱(學名:Aplacophora)是軟體動物門過往的一個綱,已不再使用。僅有250種左右。是一類身體呈蠕蟲狀的軟體動物。

分類[編輯]

過往當生物分類學純綷以形態學為分類準則之時,無板綱物種曾被以為跟海參同類,這一點可在1987年之前的分類中看見。從1987年起,本分類得到確認為軟體動物之一,因而成為一個獨立的綱。當時本綱由兩個群組成,分別為[1]

這兩個群最初以為只是並系群,但近年的分子數據支持兩個群是單系群的論說[5][6]

從分子數據及化石的分析,無板綱很大可能是從多板綱演化,只是後來這些「板」都退化了[5][6][7][8][9]

參考資料[編輯]

  1. ^ Gonzalo Giribet, Akiko Okusu, Annie R. Lindgren, Stephanie W. Huff, Michael Schrödl, Michele K. Nishiguchi. Evidence for a clade composed of molluscs with serially repeated structures: Monoplacophorans are related to chitons. Proceedings of the National Academy of Sciences. 2006-05-16, 103 (20): 7723–7728 [2018-04-02]. doi:10.1073/pnas.0602578103. 
  2. ^ WoRMS. Solenogastres. World Register of Marine Species. [2015-03-21]. 
  3. ^ Gegenbaur, C. Grundriss der vergleichenden Anatomie. Zweite verbesswerte Auflage.. Leipzig: W. Engelmann. 1878: 135 (德語). 
  4. ^ WoRMS. Caudofoveata. World Register of Marine Species. [2015-03-21]. 
  5. ^ 5.0 5.1 Kevin M. Kocot, Johanna T. Cannon, Christiane Todt, Mathew R. Citarella, Andrea B. Kohn, Achim Meyer, Scott R. Santos, Christoffer Schander, Leonid L. Moroz, Bernhard Lieb, Kenneth M. Halanych. Phylogenomics reveals deep molluscan relationships. Nature. 2011/09, 477 (7365): 452–456 [2018-04-02]. ISSN 1476-4687. doi:10.1038/nature10382 (英語). 
  6. ^ 6.0 6.1 Stephen A. Smith, Nerida G. Wilson, Freya E. Goetz, Caitlin Feehery, Sónia C. S. Andrade, Greg W. Rouse, Gonzalo Giribet, Casey W. Dunn. Resolving the evolutionary relationships of molluscs with phylogenomic tools. Nature. 2011/12, 480 (7377): 364–367 [2018-04-02]. ISSN 1476-4687. doi:10.1038/nature10526 (英語). 
  7. ^ Julia D. Sigwart, Mark D. Sutton. Deep molluscan phylogeny: synthesis of palaeontological and neontological data. Proceedings of the Royal Society of London B: Biological Sciences. 2007-10-07, 274 (1624): 2413–2419 [2018-04-02]. ISSN 0962-8452. doi:10.1098/rspb.2007.0701 (英語). 
  8. ^ Scheltema, A.H. Aplacophora as Progenetic Aculiferans and the Coelomate Origin of Mollusks as the Sister Taxon of Sipuncula. The Biological Bulletin. 1 February 1993, (184): 57–78. JSTOR 1542380. 
  9. ^ Jakob Vinther, Erik A. Sperling, Derek E. G. Briggs, Kevin J. Peterson. A molecular palaeobiological hypothesis for the origin of aplacophoran molluscs and their derivation from chiton-like ancestors. Proceedings of the Royal Society of London B: Biological Sciences. 2012-04-07, 279 (1732): 1259–1268 [2018-04-02]. ISSN 0962-8452. doi:10.1098/rspb.2011.1773 (英語). 

外部連結[編輯]