Last Updated
：2025/11/22
cast fossil
Noun
Japanese Meaning
動物・植物などの生体が死後、体内組織が腐敗し、骨や軟部組織が失われた後、その空洞に鉱物が浸入して元の形を写し出す形でできる化石（鋳型化石とも呼ばれる）
（ plural ）
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A fossil formed when an animal, plant, or other organism dies, its flesh decays and bones deteriorate due to chemical reactions; minerals gradually enter into the cavity, resulting in a cast, which is in the general form of the original organism.
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cast fossil
The museum's new exhibit features a remarkably preserved cast fossil of a tiny prehistoric fish.
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The museum's new exhibit features a remarkably preserved cast fossil of a tiny prehistoric fish.
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