中文摘要：

GBDB在线数据库是一个基于网络、数据库和GIS技术开发的古生物学和地层学数字化科研平台。GBDB的文献数据指示了GBDB中绝大多数科学数据的来源。经过多年的探索和不断改进，GBDB的文献数据库在结构上日益完善，其中细分了8种类型的文献，支持DOI链接和对在线全文数据库的指向，其导出功能支持12种常用期刊的参考文献格式。文献数据库的完善是一个长期积累的过程，需要通过众多学者的参与，才能最终建成一个高质量的科学文献数据库。截止2012年2月，GBDB的文献数据库已经收集了与古生物学和地层学相关的各类文献条目44310条。初步的统计显示，自1900年以来，古生物学和地层学相关文献的数量基本保持增长的态势。其中，1910—1959年，基本处于平稳的上升期，仅在1940-1949年间有一小幅度的下降，可能与第二次世界大战的影响相关；此后，文献数量快速上升，在上世纪90年代达到7439篇，这与同期国内外传统古生物学和地层学研究的繁盛相对应。但进入二十一世纪后的十年里，文献数量呈现明显的下降，有两种可能原因，一是较晚发表的文献，其传播速度与其发表年限呈负相关，老文献随时间流逝传播越来越广，因此更容易被数据库收录到；另一种可能则是近年来人们越来越多地重视各种前沿和热点领域的研究，而很少开展野外地质考察、剖面描述、地层划分与对比、化石描述、系统古生物学等传统领域的基础工作。

英文摘要：

The Geobiodiversity Database （GBDB, http.//www, geobiodiversity, corn） is a unique, section-based online database system for palaeontological and stratigraphic research. Various kinds of data sources can be integrated into it, including geographic, lithostratigraphic, biostratigraphic, chronostratigraphic, taxonomic and related biblio- graphic reference data. Data sources are mostly taken from the published literature. The reference database is therefore an important data source in GBDB. Through the reference database users can track the source of the data, check and verify its quality, and even attach their own opinions, as an important comparison with the initiator＇ s thoughts. To achieve a comprehensive reference database is a long-term and time-consuming job. As more people become involved, the less time will be consumed per person and the more rapidly data quality will increase. After four years ~ development, the present reference database is well integrated in GBDB, and eight major reference types are recognized. Both DOI （Digital Object unique Identifier） and URL （Uniform / Universal Resource Locator） automatic conversion to full-text database are supported. Users can upload their Endnote files to the GBDB reference database through the database adminis- trator （fanjunxuan@gmail. com）. A new export function to 12 common journals such as Palaeontology, Journal of Paleontology, Palaeo3, and Acta Palaeontologica Sinica, has recently become available online. By Feb. 15, 2012, 44 310 literature records related to palaeontology and stratigraphy had been compiled into the GBDB. Amongst them, 4 321 were based on material from China, which, ac- cording to our preliminary estimation, comprises about one third of the total literature on Chinese material. Simple counting of literature published in each decade since 1900 indicates a slow increase from 1910-1919 to 1950-1959, except for a slight decrease probably resulting from the 2na World War. Then there was a rapid increase in the num- ber of p