bivalved 中文意思是什麼
bivalved
解釋
adj. 形容詞 ＝ bivalve. -
During the primary research work of chengjiang biota, the paleontologists had an idea that the bivalved arthropod kunmingella douvilleiyas the dominant species because they found that eighty percent of the fossils they excavated in chengjiang fossil lagerstatte were kunmingella douvillei. and they also found that naraoia longicaudata, naraoia spinosa and isoxys auritus which belong to arthropoda were the sub - dominant species
在澄江生物群研究初期，雙瓣殼節肢動物朵氏昆明蟲（ kunmingelladouvillei ）化石數量占澄江化石庫中所有化石產量的百分之八十，因而古生物學家曾認為kunmingelladouvillei是該庫的優勢種。
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