Archaeosphaeroides larbertonensis (English spelling)

Japanese: Archaeosphaeroides larbertonensis(英語表記)Archaeosphaeroideslarbertonensis
Archaeosphaeroides larbertonensis (English spelling)


[Appearance of algae]
According to fossil records, algae appear on Earth as early as the Precambrian period, about 3 billion years ago. The oldest known algae fossil is Archaeosphaeroides larbertonensis , a spherical, cyanobacteria-like microfossil about 20 μm in diameter discovered in a layer from this period. Going further back in time, many fossils of cyanobacteria similar to modern-day ostracods have been found in layers dating back about 1.9 billion years.

*Some of the terminology that mentions "Archaeosphaeroides larbertonensis" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:


[藻類の出現]
 化石の記録によると,藻類は約30億年前の先カンブリア時代にはすでに地球上に出現していたらしい。この時代の地層から発見された直径約20μmの球形のラン藻様の微化石Archaeosphaeroides larbertonensisが最古の藻類化石と考えられている。年代が下り約19億年前の地層からは現生のユレモなどに似たラン藻の化石が多数得られている。…

※「Archaeosphaeroides larbertonensis」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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