(Table 1) Occurrence and abundance of late Early Cretaceous radiolarians at D...
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G = good; M = moderate; P = poor; PM = poor to moderate; - = looked for but not found; + = one specimen; A = abundant; C = common; F = few; R = rare; ? = uncertain...
本数据集采用如下符号规则：G=良好（good）；M=中等（moderate）；P=较差（poor）；PM=较差至中等（poor to moderate）；-=虽经检索但未发现（looked for but not found）；+=单个标本（one specimen）；A=丰富（abundant）；C=常见（common）；F=少量（few）；R=稀有（rare）；?=不确定（uncertain）……
