The precursor of dinosteranes were dinoflagellate algae developed in the saline and brackish water environments.
在這些環(huán)境中發(fā)育的甲藻類是甲藻甾烷的先質(zhì)物.
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ABSTRACT Non - marine dinoflagellate fossil of middle cretaceous is very rare in the world.
中白堊世 非 海相溝鞭藻化石在世界上極為罕見.
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