…After Kakabekia was reported as a fossil, prokaryotic microorganisms with a similar morphology were found in the soil of Wales, Alaska, Iceland, Hawaii, and other places. In addition, a structure named Eosphaera , which is 28 to 32 μm in size and has a large central cell surrounded by smaller cells, has been found, but its taxonomic position is unknown. All of the microfossils of 12 species in 8 genera, including cyanobacteria, that have been reported to date are prokaryotes, and it is thought that eukaryotes had not yet appeared at this time. … *Some of the terminology explanations that mention "Eosphera" are listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…カカベキアは化石として報告されて後に,ウェールズ,アラスカ,アイスランド,ハワイなどの土壌中でそれに似た形態の原核細胞の微生物が見つかった。また,28~32μmの大きさで,中心の大型細胞を小さな細胞が取り囲んでいるエオスフェラEosphaeraと命名された構造が見つかっているが,分類上の位置はわかっていない。現在までに報告されたラン藻を含む8属12種の微化石は,すべて原核生物であり,この時期には真核生物は出現していなかったと考えられている。… ※「エオスフェラ」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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