Male type (fossil) - Ogata

Japanese: 雄型(化石) - おがた
Male type (fossil) - Ogata

…When sediments penetrate between these molds left in the rock, or when groundwater seeps in and minerals precipitate, a mold that is identical in shape to the original body is formed. Such molds that match the surface and irregularities of the real thing are called male molds. Male molds are often made artificially for research purposes. …

*Some of the terminology explanations that mention "male (fossil)" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…岩石中に残されたこれらの型の間に堆積物が侵入したり,地下水が浸透して鉱物が沈殿し,元来の体部とそっくり同じ形の型が形成される。このような実物の表面と凹凸の一致した型を雄型(おがた)と呼ぶ。雄型は研究のため人工的によく作られる。…

※「雄型(化石)」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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