| 词汇 | unfossiliferous |
| 释义 | unfossiliferous adjective GEOLOGY specializeduk /ˌʌn.fɒs.ɪˈlɪf.ər.əs/ us /ˌʌn.fɑː.səˈlɪf.ər.əs/ Unfossiliferous rock, clay, etc. does not contain fossils(= shapes of bones, shells, plants, or animals that have been preserved in rock for a very long time): These rocks were believed to be completely unfossiliferous. This segment includes unfossiliferous sandstones. Rocks of similar age in other parts of the country have proved to be unfossiliferous. This area is composed of unfossiliferous grey limestones. The second rock type here is the unfossiliferous greenish siltstone. The formation is unfossiliferous and its age is uncertain. Palaeontology & fossils ammonite ammonoid biozone carbon dating fossil fossil record fossilization fossilize fossilized index fossil microfossil missing link palaeontologist palaeontology petrifaction petrify radiocarbon dating Related wordfossil |
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