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Research Home
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Cephalochordata (subphylum) (Chordata (phylum), Animalia (kingdom), ... Living Organisms (hierarchy name)) |
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Note: Small, fishlike marine invertebrates that are probably the closest living relatives of the vertebrates. Their distinguishing characteristics include a notochord that extends the entire body length, with tip anterior to nerve cord; an atrium that is a single cavity with single ventral opening, but no heard; segments that are well developed; a head poorly developed; and no paired fins.
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| Terms: |
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| Cephalochordata (subphylum) (preferred,C,U,LC,S,English-P,D,U,N)
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| Cephalochordata (subphylum) (Latin-P,D,U,N)
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| Cephalochordata (onderstam) (Dutch-P,D,U,U)
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| lancelet (C,U,C,English,AD,U,N)
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| lancelets (C,U,English,AD,U,N)
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| amphioxi (C,U,English,AD,U,N)
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| amphioxus (C,U,English,AD,U,N)
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| cephalochordates (C,U,English,UF,U,N)
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| cephalochorda (C,U,English,UF,U,N)
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| Leptocardia (C,U,English,UF,U,N)
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| Leptocardii (C,U,English,UF,U,N)
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| Acrania (C,U,English,UF,U,N)
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| Cirrostomi (C,U,English,UF,U,N)
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| amphioxuses (C,U,English,UF,U,N)
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| 頭索動物亞門 (亞門) (C,U,Chinese (traditional)-P,D,U,U)
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| tóu suǒ dòng wù yǎ mén (C,U,Chinese (transliterated Hanyu Pinyin)-P,UF,U,U)
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| tou suo dong wu ya men (C,U,Chinese (transliterated Pinyin without tones)-P,UF,U,U)
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| t'ou so tung wu ya men (C,U,Chinese (transliterated Wade-Giles)-P,UF,U,U)
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| schedellozen (C,U,Dutch,UF,U,U)
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Facet/Hierarchy Code: H.HL |
Hierarchical Position:
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Agents Facet |
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.... Living Organisms (hierarchy name) (G) |
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........ living organisms (entities) (G) |
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............ Eukaryota (domain) (G) |
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................ Animalia (kingdom) (G) |
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.................... Chordata (phylum) (G) |
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........................ Cephalochordata (subphylum) (G) |
Additional Notes: |
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| Chinese (traditional) ..... 狀似魚的小型海生無脊椎動物，頭索動物可能是脊椎動物最近的現存親緣種。特徵為縱貫全身的脊索，由頂端延伸至神經索，腹面有口；身體某些部分發育完全，但頭部發展不全，亦無成對的鰭。 |
| Dutch ..... Kleine visachtige ongewervelde zeedieren die waarschijnlijk de nauwste verwanten zijn van de gewervelde dieren. Ze hebben een chorda dorsalis over de gehele lengte van hun lichaam (in plaats van een wervelkolom), een atrium met één kamer en één ventrale opening en goed ontwikkelde segmenten, maar geen duidelijke kop en geen gepaarde vinnen. |
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Sources and Contributors: |
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