| 单词 | coal flora |
| 释义 | > as lemmascoal flora coal flora n. the plants whose remains occur as fossils in coal measures (coal measure n. 2); a group of plants from which a (type of) coal deposit was formed; cf. coal forest n. ΚΠ 1831–3 J. Lindley & W. Hutton Fossil Flora Great Brit. I. 185 If it is a Fungus, it is perhaps the first that has been discovered in the Coal Flora. 1900 Elements Mining Engin. (Colliery Engineer Company) II. 47 The coal flora is one of the most abundant and perfect of the extinct floras. 2009 L. Margulis & M. J. Chapman Kingdoms & Domains (ed. 4) v. 436 Tropical swamp ‘coal floras’ of the Carboniferous Period, 354–290 m[illion] y[ears] a[go]. < as lemmas |
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