…In the case of bivalves, the internal male mold can be easily obtained by placing clay between the pair of shells, but even in natural conditions, it is formed from various rocks and minerals. This is called a core or lithic core (German: Steinkern). Traces of the life activities of ancient organisms that remain in the form of rocks or minerals are called trace fossils. … *Some of the terminology that mentions "Steinkern" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…内形雄型は二枚貝などの場合,対になった貝殻の間に粘土を入れてはさめば容易に得られるが,自然状態でも各種の岩石や鉱物により形成されている。これを核ないし石核(ドイツ語ではSteinkern)という。 古生物の生活活動の痕跡が岩石や鉱物の形で残存しているものは生痕化石と呼ばれる。… ※「Steinkern」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 |
>>: Steinweg, HE (English spelling)
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