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trace fossil 强调
一般	ихнофоссилия (Belemnitella taurica)
地质学	след жизнедеятельности ископаемого организма
英语 词库
trace fossils
古生物学	ichnofossils (MichaelBurov)
解释性翻译	Trace fossils are the evidence of biological activity of an organism in the geologic record, but without some part of the animal or plant itself actually preserved. Typical trace fossils are footprints or trails, compared to body fossils such as bones or petrified wood. (MichaelBurov)

trace fossil : 2 短语, 2 学科

库页岛	1
油和气	1