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Placodermi (extinct class) (Vertebrata (subphylum), Chordata (phylum), ... Living Organisms (hierarchy name)) |
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Note: Extinct class of vertebrate jawed fish-like animals known mainly from fossils of the Silurian and Devonian periods, having the head and pectoral region encased in broad, flat bony plates. Characterized by jaws supported by both cranium and hyoid arch, a partly ossified cranium, a head and trunk with armor that is jointed at the neck, often pelvic fins, pectoral fins or finlike structures, and gill arches.
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| Terms: |
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| Placodermi (extinct class) (preferred,C,U,S,English-P,D,L,N)
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| Placodermi (extinct class) (Latin-P,D,U,N)
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| Placodermi (uitgestorven klasse) (Dutch-P,D,U,U)
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| placoderms (C,U,C,English,AD,U,N)
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| placoderm (C,U,English,AD,U,N)
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| 盾皮魚綱 (已滅絕的綱) (C,U,Chinese (traditional)-P,D,U,U)
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| dùn pí yú gāng (C,U,Chinese (transliterated Hanyu Pinyin)-P,UF,U,U)
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| dun pi yu gang (C,U,Chinese (transliterated Pinyin without tones)-P,UF,U,U)
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| tun p'i yü kang (C,U,Chinese (transliterated Wade-Giles)-P,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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........................ Vertebrata (subphylum) (G) |
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............................ Placodermi (extinct class) (G) |
Additional Notes: |
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| Chinese (traditional) ..... 脊椎動物亞門下已滅絕的綱。為似魚的有顎動物，其化石主要出自希留利亞紀(Silurian)與泥盆紀(Devonian)。頭部與胸部皆以寬闊平坦的骨片所包覆。特徵為上下顎由頭蓋骨與舌骨弓所支撐、部份骨化的頭蓋骨、頭部與覆有外甲的軀幹藉由頸部連結，通常具腹鰭、胸鰭或似鰭的結構，亦具鰓弓。 |
| Dutch ..... Uitgestorven klasse van gewervelde visachtige dieren met kaken. Van deze klasse zijn fossielen gevonden uit voornamelijk het Siluur en Devoon. De kop en borst waren bedekt met brede, platte benige platen. Kenmerkend waren de kaken, die door zowel de schedel als de tongbeenboog werden ondersteund, en de gedeeltelijk verbeende schedel. De kop en snuit waren bedekt met een pantser dat aan de nek vastzat. Gewoonlijk hadden de dieren buikvinnen, borstvinnen of vinachtige structuren en kieuwbogen. |
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Sources and Contributors: |
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