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Metasequoia (genus) (Cupressaceae (family), Pinales (order), ... Living Organisms (hierarchy name)) |
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Note: Genus of conifers represented by a single living species, Metasequoia glyptostroboides, from central China. Fossil representatives, such as M. occidentalis, dated to about 90 million years ago during the Late Cretaceous Period, are known throughout the middle and high latitudes of the Northern Hemisphere. Climatic cooling and drying that began about 65.5 million years ago and continued throughout the Cenozoic Era caused the geographic range of the dawn redwood to contract to its present relic distribution. The leaves are arranged in pairs on deciduous branchlets, and this deciduous character probably accounts for the tree's abundance in the fossil record. Metasequoia is closely related to the Sequoia and Sequoiadendron genera.
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| Terms: |
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| Metasequoia (genus) (preferred,C,U,S,English-P,D,U,N)
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| Metasequoia (genus) (Latin-P,D,U,U)
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| Metasequoia (genus) (Dutch-P,D,U,U)
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| 水杉 (屬) (C,U,Chinese (traditional)-P,D,U,U)
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| 水杉屬 (C,U,Chinese (traditional),UF,U,U)
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| shuǐ shān (C,U,Chinese (transliterated Hanyu Pinyin)-P,UF,U,U)
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| shui shan (C,U,Chinese (transliterated Wade-Giles),UF,U,U)
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| shui shan (Chinese (transliterated Pinyin without tones)-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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................ Plantae (kingdom) (G) |
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.................... Coniferophyta (division) (G) |
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........................ Pinopsida (class) (G) |
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............................ Pinales (order) (G) |
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................................ Cupressaceae (family) (G) |
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.................................... Metasequoia (genus) (G) |
Additional Notes: |
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| Chinese (traditional) ..... 松柏科植物的屬名，以來自中國中部的水杉（Metasequoia glyptostroboides）這個單一種為代表。該屬中的化石代表物種則是墨西哥奇異果（M. occidentalis），其歷史可追溯至大約西元九千萬年前的白堊紀時期晚期（Late Cretaceous Period），在北半球中高緯度的地區廣為人知。大約西元六千五百萬年前，氣候開始變得涼爽且乾燥，並且持續到新生代時期（Cenozoic Era），導致水杉的地理區域縮小至其目前的孑遺種範圍。樹葉在落葉性的小樹枝上成對排列，而這落葉的特性或許是讓這種樹木留下許多化石遺跡的原因之一。水杉和紅杉及巨杉屬是近親。 |
| Dutch ..... Coniferengenus met één levende representant, Metasequoia glyptostroboides, afkomstig uit centraal China. Fossiele vertegenwoordigers, bijvoorbeeld M. occidentalis, zijn circa 90 miljoen jaar oud en dateren uit de Late Krijtperiode. Ze zijn overal op de middelste en hoogste breedtegraden van het noordelijk halfrond aangetroffen. Doordat het klimaat circa 65,5 miljoen jaar geleden kouder en droger werd, tot in het Cenozoïsche Tijdperk, kromp het geografische bereik van de watercipres tot de huidige fossiele verspreiding. De bladeren zijn paarsgewijs gerangschikt op bladverliezende takjes, en dit bladverlies vormt vermoedelijk ook de verklaring voor de overvloedige fossiele vondsten van deze boom. De Metasequoia is nauw verwant met de genera Sequoia en Sequoiadendron. |
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