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前言我国泥盆纪腕足类化石内容丰富、分布广泛,在确定时代,划分、对比地层方面具有重要意义。解放前,虽经国内外一些学者作过研究,但材料比较局限,层位不清,故一般多偏重于描述性记述。解放后在我国地质工作迅速发展的推动下,这一方面的研究工作不断前进,从零星的研究逐步走向全面、系统的钻研,一些新的认识也逐步取代着某些旧的看法。这些
Preface Our Devonian brachiopods are rich in content and widely distributed, and are of great significance in defining the times, dividing and contrasting strata. Before the liberation, although some scholars at home and abroad have done research, but the material is more limited, the hierarchy is unclear, it is generally more emphasis on descriptive description. After the liberation in the rapid development of geological work in our country under the impetus of the research work in this area continue to move forward, from a sporadic study gradually toward a comprehensive and systematic study, some new understanding has gradually replaced some of the old view. These ones